All i know is that i've been with them for a year now and i never had any major problems.
1. It's even more, i bought an addon domain 2 months ago and prizes started at 14.95$
2. I can't really tell how much free tickets you can get, i only needed like 5 tickets in the past year and they were free.
3. Never had any problems, maybe it's just because i run a small site or i must be a very lucky guy. Who knows?
4. I can't judge their support staff about this. They always helped me in a fast and friendly way whenever i needed them.