Unless you fit bucket seats then they aren't worth it for daily driving.

Still ok for track days as long as your seats are strong enough to take the strains in a crash.

The're a right pain when you want to just pull up at the postbox to drop off a letter or something. I tend to loosen them off as I slow down before pulling up so that I can quickly unclip them and climb out. Plus they are a pain to loosen and take twice as long to sort out when they are not clipped up.