Yes, I tried Strike the day it launched. Can't remember why I didn't go with it. I have literally gone through every single option in my 8 years of buying Bitcoin. SwissBorg is my favourite, it's not an exchange, it's a broker, sourcing the best price across the markets in real time. They got shut down by the FCA for a while, but they are back, however they changed their nominee account, so while I still deposit fiat to them into an account in my name, all my banks are flagging it as a Wyse trading account (incorrectly) and blocking it constantly, hence why I'm buying small amount from CoinCorner & Revolut. I'm only buying tiny amounts these days, so I'm less bothered about achieving the best rate.
I’ve not come across Swissborg, I’m amazed after 10 years of buying I still hear of sites new to me. I’ve been through bittylicious, blockchain, Binance etc but have used Bitstamp almost exclusively for the last 5 years. Better rates but I have more and more trouble simply depositing these days so a relief to find strike so easy, and rates aren’t too bad.