Same here: I've got the standard DD hammock and didn't get on with the supplied tapes (and yes, I've ended up with my backside on the ground!) I replaced mine ages ago and from what I've seen, most other folk seem to do the same (but equally, we blokes do like to tinker with our kit!)
I've also got their sleeping bag liner, which I thought was a bit flimsy but OK I guess for the price. Mine tore early on along a seam, but it's been fine since it was fixed.
I've also got their larger heavier tarp which I've had no problem with. Bit heavy to lug around but good at what it does.
One final positive about DD stuff is that their customer service is second to none.