I am currently enrolled in an ADN program and it is crazy how hard it is. We take on double the clinical hours compared to the BSN programs around us. The things they learn over 14 weeks, we learn in 7. It's nice that its a shorter time period, but still very hard.
I also had to wait 3 years on a waiting list before I could begin this program. Most schools that I've heard of all have waiting lists so just be prepared to wait awhile.
Good luck with whatever you decide!:)