I have used SPD on most of my bikes and continue to use them on the Q45. They are set to a very light release so if I panic, I can get out quickly. I started with flat to gain some confidence, but being clipped in make starts easier and riding more relaxed.
The biggest reason for not using road systems is the shoes, which are hard to walk in when touring or visiting coffee shops. High end MTB shoes are also quite stiff and light.
The biggest reason for not using road systems is the shoes, which are hard to walk in when touring or visiting coffee shops. High end MTB shoes are also quite stiff and light.