I use an avatar sb112 for my small - med room rig.....some rooms really need the smaller cab than the 4-10 and I find that for my needs, the 1-12 works well to accomodate the issue. I would not trade it for anything I have played lately. I know many will sound better, but it is bought, paid for etc. I replaced the delta with a Kappa Pro and actually have a Delta LFC 4 ohm speaker to put in it.
I match it with the Peavey T max, PF500 or QSC plx1602 and Sansamp RBI. If I had a combo that sounded as good, it would be easier to lug, but it has been a very flexible setup and I have no issue with it. In fact, I had paired a single 15 8 ohm cab with it for more ooompf and it was solid. On its own though...it does what I pay it to.
Size is an important aspect, when you load up in a Scion XB. The 410 fits too, but there for a while, it was PA, 2 15" PA cabs, 2 12" PA cabs, cables, poles/stands, bass head, guitar amp, mics, etc. basses......it all counts. The SB112 is a substantial 1-12 cab.