This issue for some of us, we bought the pill version, IIRC model 8034 or some such thing before the hydrostatic came out! so best to buy a new pill every yr or two!
Otherwise, having 2 pills, and 4 hydro's on my boat, they fit, look and wear the same.
The ONLY issue I have seen, is some folks feel in REALLY rough water, ie force 8+ and having to be rescued, or get into a life raft or equal, a std vest style might be easier than an inflated inflatable. I personally could see this as an issue, but for those of us that for the most part sail in under 40 knots, less than 5-6' waves in reasonably protected waters........probably not an issue overall. But if I went offshore, it would be something I would consider potentially doing different, or have a different setup than I have.
All my version have the harness attachment.
She drives me boat,
I drives me dinghy!