I have a pair of half rimless, and also another pair of completely rimless. I think they are both nice, however I try not to wear them if I don't have to because I have this silly idea in my head that in the long run they will make my eyes worse.

My prescription doesn't sound as bad as yours as I can get away with standard lenses. I chose to go without on the day because I don't wear them all the time so am used to being almost blind!

I think that you have made a good choice with half rimless, I'm sure they will look lovely.