Yup, I have one. It's the only stand I use. I have a 12' APIC stand that I may break out this summer at Rockygrass, but other than that - 3373 all the way. I don't record big arena shows, so I simply don't have a need for a 17' stand.
Stability depends on the footprint. I often run mine with the legs as narrow as they'll go to ensure a minimal footprint. Not as stable this way vs. the legs opened up for maximum footprint, but I've not had any problems. Besides, if I'm in a situation where I'm concerned about stand stability / resistance to people knocking into it, I just tape the sucker down.
This I NOT a tall stand, though - maybe 7'6" fully extended (including A20S shockmount) with the legs as narrow as they'll go. I almost never find myself wanting to run higher, and if I do it's always at shows where I can clamp onto someone's monster tall stand.