I sold my metal 40lt and "upgraded" to an eclipse. Sold metal unit that had no warrenty for $600 and picked up eclipse with cover for $800, gained 3years of warrenty and now have a receipt to jam down the insurances throat when they question if I had one if it ever decides to go missing.
I like the eclipse unit, no thrills, no rust. Turned it on 6months ago and hasn't been turned off yet, the way the cover goes on is a bit so so with the Velcro/tape setup, get it right and should last a few years before the tape gives way.
Noise doesn't bother me even sleeping next to it a couple of nights, I'm guessing even though the latches are plastic there's two of them vs the metal version, also less overall hight for when you open the lid right open when you pack it.
In temps up to 35degrees and as low as 10 the most temp variance I've had is 2.5degrees (using an engel thermometer) so I'm happy to set and forget just under the 2 setting for frosty beers (-3.5 - -1)