Very good actually.>>38643878
The smell could be a problem at the start, but then you get used to it, and like it anyway as well and may demand more (like farts or forced sniffing). It depends by how much you're into it.
The pressure it depends if you like it or not, and how much weight she puts on the butts. To me was her first time, so she put a lot of weight for sitting properly and comfortable on my face, and nearly broke my nose, but it was good anyway.