[pete-p]

I'm using mine as a daily family car and have two isofix seats fitted. I've started to use Britax more so and wouldn't be without isofix for the older ones (when they start using the 3-point belt), it means the seat will at least stay in place when they get out.

I did have an issue with an isofix base early on as the jaws were too think to reach the anchors so had to secure it with the seatbelt instead. I've never used the guides either but have spare ones around as some seats supply them. They are rather chunky and with the seat protector in place the only real damage to the leather would be deep down under the backrest where it can't be seen anyway.