I’ve had a 2018 V60 T4 R-Design Nav since October last year. Absolutely love it! MPG isn’t brilliant (I get about 30 average and I have a heavy right foot. Have had 35ish on longer Mway trips) but if I was bothered about such things I’d have bought a Diesel. Haven’t had a service on it yet… and nothing gone wrong yet so cant tell you bout costs etc. Havent noticed the poor turning circle as mentioned above (maybe all my previous cars have been similar!).
Boot is a great size and with seats down it can get a good amount of crap down to the tip.
Edit: Headlight washers are ridiculous! my seem to chuck out half a litre all over the bonnet every time they come on