I had minimal cramping when I put mine in. Just took some tylenol before hand and I was fine the next day.
I didn't bleed at all. I think I got lucky.
I haven't had a period in... 3.5 years(I'm coming up on my 4 year date for it.) When I did bleed, it was more spotting for a day or two and then it was gone.
I haven't had anyone say they could feel it, so I don't know.
I'd recommend it! I love it. Nothing to worry about for 5 years, I haven't had any issues at all. I didn't gain any weight like I did when I was on Depo. My friend also got hers a month before mine and she hasn't had any complications, and loves hers also. :)