Are pretty damn fantastic if you don't have the time/money/skill/mics/alloftheabove to mic up real, acoustic drums.
With a little tweaking here and there, Reaper has no latency, and the stock Metal Machine EZX sounds pretty damn good. My vDrum brain is just the cheap TD-4, and with the pad velocities around 20-25 they're a little hot for the DAW, but nothing that can't be adjusted later.
Those of you on the fence, the "cheap" vDrum kit + software is certainly a damn decent way to go about recording hobbyist-level albums.
Also fun: If you have some synth tracks armed along with your drum VST, you can have your drummer pals pull off nifty Morphine-sounding stuff all on their own if you map the piano/synth hits to the same pads as the drum triggers, and run both VSTs at the same time.
Here's a quick clip of DB just fucking around with the VST-oops. This was right after he sat down and I was like "Ok, let's test stuff". Neither of us realized what the hell was going on at first, which is why he's looking at me so strangely.
[VIDEO]http://www.youtube.com/watch?v=W2RpqEOac-Y]Drum VST + Piano VST = Confused Drummer - YouTube[/VIDEO]