The DTX700 is a cool little box. You can't get variable hat unless you use the actual trigger input, but we got along for years without that.
The sounds are fine, but I use mine a little differently. It has the ability to instal 64MB of sample data. I was able to get one of my kits down to that size and it plays well. It is not as cool as using BFD2, but still decent. I have one for outside gigs. I play a jazz brunch at a popular place. We play outside most of the year and they have us under a tree that leaks really sticky sap. When the tree is leaking bad, Or the rain is coming in I sometimes use the DatX700 with my sample set.
BTW, nice to meet you Allen.