very sparingly but if i'm dealing with rock than i use it a bit more, sometimes using the L R method to spread it more and get a more stereo feel (only for room/overheads, it's best for other inst. and vox). itb, i make sure i have both a short reverb and a long reverb, snares (or the kit) go to short.
i'm not big on hearing the reverb so it's low in the mix barely audible if at all but filling in the space. my stuff never has reverb on my kicks unless i'm using reverb as glue, but you wouldn't even know it's there.
the type varies, spring (psuedo), plate (pseudo), ir/convo, hardware, i've never really settled on one