It requires more foreplay and (for some) I'm sure lots of lube (fortunately for me that hasn't been a problem yet) but with a bit of time I've never had any issues. The largest girth I've experienced was about 6.5" FWIW.
It was a penis and it was great! He spent a lot of time on foreplay which really helped, and while it took a little while to take it all, it resulted in some fantastic orgasms.
I love when a woman is tight enough to make it a bit of a challenge but it still fits in the end. Usually means I’m going to get milked dry