I've been using modelers for bass with passive and active PA (full range) cabinets for quite a few years. I personally favor coaxial designs, but that's just me. The biggest challenge is, IMO, how well they handle low end when you start pushing the speakers. To that end, I find that I like passive cabinets with a power amp or power section of a bass amp head better than active powered PA cabinets which generally either start to fart (and need aggressive low frequency filtering), or kick in some automated power amp limiting which kills any desirable "punch" in the low end dynamics.
[Amending this to say that 15" powered PA speaker cabinets actually can do well with low frequencies, but tend to be bigger in size, and for me personally, not as desirable.]
Although some of the passive PA cabs I use don't necessarily get real low - which can be a good thing - they seem to hold together better when I do need the extra gas when playing live with in a rock band format, especially with drums.