You can check out the Swedespeed forum for all the issues with the 2016 Volvo, but since you asked...
I loved the car, there was no shortage of power or performance. I especially loved the looks and that there weren't too many particularly when I first got it. Unfortunately, reliability and too many minor issues crept in to the enjoyment factor. People on this forum have noted a creak or rattle here and there. The Volvo was filled with them. Too many and too loud to even think about solution from the dealer. Also the middle row seats would visibly vibrate (you could look in the rear view mirror); there was too much play in the front passenger
seat and the third row seats (was told this was normal); numerous recalls; replace amplifier; replace front radar module; replace some random relay or sensor; the lengthy delay in response and bootup of the interface; faulty temperature sensor; false front parking sensor alerts to name a few. But in the end, I learned there was a problem with all of the early t6 motors (the 2.0 four cylinder with both a turbo charger and a supercharger) where the sparkplugs would literally break apart and ultimately cause catastrophic failure to the engine. I had heard this and requested on two prior occasions a sparkplug change; but until Volvo corporate issued a formal TSB more than a year and a half into ownership, they did not change them. Changing them now would possibly have mitigated the issue, but I wasn't willing to take the chance, so I got out while the getting was good (or at least not too painful on the resale)