For the record, I have owned a Compact and it is quite a cool little cab. Of course to achieve the portability of it and low weight, there are compromises. The Compact is not going to sound like a fEARful 15/6 but that is not what it is designed to do. The wood is very thin... 3/8ths I think. I also recall hearing complaints a year or so ago about the duratex style finish. People were saying it has a DIY / homemade feel to it and not as professional as other builders such as Berg, Epifani etc. Having owned it I can see how they would say that, but personally I thought it was well built and the finish coating seemed quite tough and sturdy.
I tried an early Compact, and it was super light, and I wasn't using the easiest amp to EQ (Ampeg Pro 3) but I was boosting the mids and not hearing myself. A LOT of low end, but it didnt cut. Now, if things really have come on and the new finish is as good as the spray on Berg AE line, or the EAD (another UK cab maker) cabs, and I can get my tone, then yeah, i'd give it another shot. Things change...not sure what model would suit me but Im a perfectionist so it would have to tick all the boxes.
As much as clear PA type bass cabs are popular, I see no problem with just a high end 'bass guitar' designed cab that is suitable for bass, regardless of number of strings, etc. Eg, Bergantino.
For me, its not just about weight.
Email me back when you've found some sounds! 