The DG28 has a growing reputation for reliability and accuracy. It's a simple design and often roughly finished, but it gets the job done. Problems have been seen, mostly due to this movement being a cheap drop-in replacement for a Miyota and therefore turning up in some very cheap watches. Lately it seems to have become the default choice for fake Rolexes, too In a reputable brand, cased up in clean conditions, it should have accuracy and reliability on par with a Japanese Miyota.
Power-reserve should be at least 40 hours. The uni-directional winding gives a bit of ratchet noise but it does its job very effectively. Hand-winding feels like you're doing something wrong, but it should start with a shake anyway.
In spite of an identically designed indirectly-driven second hand, this movement is less often reported suffering 'stutter' than the Sea-Gull ST16 or Claro-Semag CL888.
Date change is fairly gradual, but the quick-change should have a nice positive feel.
The hack function is the least satisfactory aspect. In some instances it can delay up to a second and you need a bit of winding on it before you hack if you want to be sure it will work.