Bubbleponics is just a DWC system with a water pump delivering nutes directly to the rockwool cube. Whether it's worth the extra 20 bucks or so is up to you. It'll shave some time pff the veg phase because the seedlings constantly get fresh water, and it probably helps a bit even after the roots hit the deep water, but I usually pull the pumps after a few weeks into flowering.
The system doubles as an excellent cloner, as well. I have 4 cuts in rockwool cubes in a bubbleponics tub that I cut a week ago, and none of them are yellowing at all yet.