Chapeaux! while not a 48MY, is a 53 YF and stabilized. First stabilized boat we had...would never go without again. The difference, especially in beam and quartering seas is quite striking.
However, fin stabilizers have the potential for some issues. Last year, in a period of two weeks, while Chapeaux! was in Stuart Yacht for a refit, we saw two real serious stories related to fin stabilizers. The first, a 42 LRC, hooked the side of the channel in the St. Lucie Waterway, West of Stuart, and appeared to have nearly cartwheeled onto the bank, sinking her. Rather than breaking away, the vane appears to have remained intact and the attaching point for the stabilizer actuator cracked the hull and she took on water...a total loss of the vessel.
The second, I believe it was a 58LRC, went aground on one of the vanes in the Bahamas, and while the tide dropped, the vessel listed toward the opposite side, taking the exhaust below the water level, letting water run over the riser and in through the exhust manifold. When the affected engine was started, after getting clear of the reef, one of the cylinders liquid locked and bent the connecting rod. Running on a bent rod.....perhaps without realizing, broke same, punching out through both sides of the engine block and (I think) through the oilpan. This I learned from the engine tech, as the damaged engine sat on the back of his truck, a total loss.
While I believe these two incidents, occurring in such a short timeframe, were probably fairly rare co-incidences, they do point out the fact that the vanes can make the vessel a bit more unforgiving with respect to the bottom. Good food for thought. They do stick out, not totally unlike the "Curb Finders" I had on my 55 Chev.