6r80 vs 10r80

Hey guys I was looking into mustangs and just found out that the 2015-2017 don’t have a 10spd lol. Anyways I’m wondering if the 6r80 in the 2015-2017 holds up better than the 10r80 in the 2018+? I’ve read that the 10spds have issues, not sure if that’s chronically online or if it’s really a problematic transmission. Is it worth saving the 5k+ for a 6r80 or is the 10r80 worth it. Plan on boosting in the future.