The ONLY way I would own one again is if they were giving away boats with roller trailer purchases.
If you like to stand in the water a lot, and swear on windy days, get a roller trailer.
So much easier with a bunk trailer with guides, drive on, it self centers, hook up chain/strap, drive boat out and tighten if necessary.
Ever see a guy back a boat off a roller trailer? No? That's because if you unhook a roller trailer and start backing down a ramp, your boat is on the ramp.
There's a reason about 90% of the trailers you see at any given dock are bunks, and it's not that we haven't heard about the shallow landing advantage.