Yes, I have. Monitoring is very common (and highly recommended) during medicated cycles, which I did/will do again. I've never done it for an unmedicated cycle though. THen again, I don't ovulate w/o meds.
It's basically just internal ultrasounds, which are a piece of cake, and bloodwork. A lot of it. I think I was "violated" about 20+ times in my medicated cycle and went an entire week where I had blood drawn every day. Super fun, I tell ya!