Aspenora AS-BPR52SFirst, about my 4 star rating. Many people would give this fridge 5 stars. I didn’t because I prefer a more European style of rating. 5 stars would mean this is truly exceptional, and as I only have experience with two different fridges I’m not qualified to rate it as such, even if it was.The unit I received came reasonably packaged and was cosmetically perfect. The overall impression is a clean and well laid out design. The removable handles are firmly attached with substantial machine screws threaded into metal. The handle brackets are fairly substantial, and look like they may be ABS, which is a very tough plastic. Even if they did fail, their decent mounting holes would remain usable. The lid works fine and has a built in LED light.The touch controls are conveniently mounted on the lid and easy to work, although it took me a little effort getting used to them as I generally avoid touch screens whenever I can. The instructions are sufficiently clear to enable use. My only complaint is that, except for the temperature setting, the display does not show the current settings for any other parameters. You can see what will be the new value, but only when you hit the + or – change button. I like the wide range of control available. You can independently set both the upper and lower compressor cut-in and cut-out offset temperatures (hysteresis). Also, the full temperature range is broken into 3 segments and you can set a separate correction offset for each of these. In my tests this kept the measured and set temperatures to within about +/- 2 deg. of each other over the entire range of 10 to -20 deg. NB: All temperatures are in deg. C.I did 3 days of extensive testing to determine its actual cooling capacity and see how much power it consumed. This is important to me as I plan to use this long term on solar power, and sometimes leave it unattended for multiple days in a closed car where it might get up to 45 deg. There are 2 parameters of interest: How much can it cool below the ambient temp, and how many amp-hours (Ah) it will use for that cooling. Note: The relevant cooling is the depression below ambient. That is, cooling to -20 on a 20 deg. day is equivalent to cooling to 0 on a 40 deg. day. This equivalence was verified in my tests. All my Aspenora tests were done without extra insulation, tests on a Dometic CF-18 showed that extra insulation increased cooling capacity at moderate and lower cooling levels, but not the maximum ones. I have a speculative explanation for this which would apply to the Aspenora also. The graph shows the results of my tests for both this and the CF-18 fridges. This 1.8 cu ft unit has a better surface to volume ratio than the 1/3 sized CF-18 so it’s not surprising that it’s cooling limit is 52 vs 47 deg. I include the CF-18 data to give an idea of how helpful extra insulation might be.I measured the current over a period of about 10 minutes starting from compressor startup. Typically, at 12 volts, it has a soft start at about 2.5 amps, ramps up to 4 amps at 2 minutes, then slowly decreases to about 3.5 amps and settles there. An average of about 3.7 amps should give a good estimate of consumed power. To get the Ah used multiply 3.7 by the fraction shown in the graph and by the applicable time. An estimate of the daily temp profile will be needed to get a 24-hour result. For example, say the 12-hour night average is 15, the day average is 30, and you want -10 in the fridge. Then from the graph: f(25) = .23, f(40) = .55, therefore: Ah = 0.23 x 3.7 x 12 + .55 x 3.7 x 12 = 34.6I looked at the temp in the small compartment only briefly. A thermometer in the bottom seemed to show about 10 deg. or more above the main compartment. The bottom was definitely warmed by the compressor when it worked hard in a warm room. However, unless one really wants the separately controlled temperature zones available in units costing 3 times as much I don’t see a good reason to spend that much for a small fridge.Some people are concerned about durability for rough 4WD travel, and this deserves thought. I think it can be overhyped for two reasons. One is that, from what I see in pictures, most people carry their fridge in the worst place possible from an engineering perspective. The smoothest riding place in a vehicle will be centered between the front and rear axles where, by geometry, individual wheel motion effects will be divided by 2. That’s usually approximately behind the front seats. Instead, fridges are typically carried where it is convenient, in the very rear behind the rear wheels. Geometrically, rear wheel bouncing effects are magnified in this area. My wife and I have over 50 years of experience in backcountry and off road driving and have never had problems carrying coolers and foodstuffs behind the seats. I can’t speak for “rock crawlers” as we are primarily “overlanders”. For us 4WD travel is mostly an entertaining, sometimes tedious, price to pay to get away from people and start travel on foot. I suspect that’s true for many other 4WD travelers and I suggest that with a little care a fridge like this Aspenora can be quite rugged enough for your needs.I hope this is helpful. Now it remains to see if this fridge actually holds up in actual use. I will modify this if it fails inexcusably. Were oldies and expect appliances to last 20 years, ha!