The 3000 is also a nice pedal for a less expensive option. I would not hesitate to use a 3000 on a gig. I never played a 6000. Glad you like yours. I hardly ever hear about them, same as the DW 4000 and the DW 7000. I've played those. Most DW pedals have a similar feel IMO.
I like DW pedals, they're fairly bulletproof. I have a DW 5000 pedal that I never touched the settings on that pedal since I originally adjusted it.
I got it in 2004, and did at least a 1000 gigs with it over 10 years, before getting a 9000. Some bottom teeth on the sprocket today are nubs. I never even oiled it, whoops.
There's a lot of good pedals. Yamaha, Pearl...I could never get along with Iron Cobras. They feel heavy to me. (heel down)