I've got a summer beach cabin about 50-60 miles south of you on Whidbey Island in a little place called Maxwelton, of which I've got a 2004 GW 228 Seafarer with a single Yamaha F225 on it and she works just about perfect for me. My previous boat was a 21' Arima, which that boat was much too light, sat too low in the water and all of the weight was in the stern of the boat. So, you'd hit the 1'-2' chop and pound quite badly, as well as the windshield and side windows were too short so you'd get spray over the sides and front of the boat. It resulted in a very wet, uncomfortable ride and that's why after a few years of owning that boat, I sold it. During the time where I didn't have a boat, which was just over a year, I looked at a number of different Grady White's from 208 Adventures, 226/228 Seafarer's and even a 232 Gulfstream. I have a mooring buoy in front of our beach cabin and I didn't like the idea of the notched/motorwell style of transom on the 208 Adventure/226 Seafarer, so I crossed those off the list. I also didn't like the idea of them having the bang cap/plate because of all the issues that people have had on here with water intrusion. Then, I actually stepped foot on a 232 Gulfstream that was for sale at Jacobsen's Marine, who is the local GW dealer here in Edmonds, and realized that it was a much bigger boat than what I needed it for. The beam on the 228 Seafarer is 8' but the beam on a 232 Gulfstream is 9'3", which makes the boat obviously considerably wider and heavier, especially if you have one with twin motors on it. From what I hear, It also makes the boat a bit more difficult to trailer and I believe you're supposed to have a wide vehicle permit to tow the boat? Though, I'm not positive on that.
The 232 Gulfstream has the step on it, which I wasn't a fan of considering I have parents in their 70's and a niece that will be 8 in a couple of months. So, I wanted something that someone wouldn't be able to trip or slip on as easily, which the 228 Seafarer is an all level floor. As mentioned above with the notched transom, I also didn't want someone potentially falling out while sitting in the back and the idea of having a fully enclosed transom was a huge plus for me. I'm also not a fan of the bunk bed style of cabin that the 232 Gulfstream has as well. My 228 Seafarer will do everything that I need her to do, though in the south end of the Puget Sound here the waters are obviously a bit more protected. That being said, I've been out in 5-6' swells and had no issue with the boat at all, though as mentioned above you'll likely need to pick your days somewhat more. But she's a comfortable riding boat, that will keep you dry and your back/knees won't be on fire like you'd experience with the Arima. I again thought that the 232 Gulfstream was a much bigger boat than I'd ever need as I typically just troll for salmon, check crab pots and occasionally go out for a stroll. Both boats are going to be extremely versatile though, and I'm thinking you probably won't be able to go wrong with either. If you're ever down in this direction I could take you out on my 228 Seafarer, though the conditions are generally always pretty favorable, so I'm not sure if that would help at all. If you do go with a 232 Gulfstream, I think you'd be silly not to get one with twins. I've purchased my 3 boats back on the east coast because of the pricing and they're typically about half of what they sell for out here. I think if you did go with a 232 Gulfstream that twin 150's/200's would likely be the ticket. That being said, a 228 Seafarer with a single F225/250 will do 35 knots quite easily, should have at least a 92 gallon main fuel tank and some have the optional auxiliary tank putting you at close to 150 gallons total. Either way, good luck and if you have any other questions don't hesitate to ask.