I'm assuming you may have booked the $49 special for this property at bookit. I think the sale expires tomorrow night. The best I've seen otherwise for this location is about $63/night.
bookit (.com) often has cancellation charges that are pretty steep, but for this deal, they will give you a refund up to the day before you arrive. They do charge upfront, thus this is a prepaid stay, but the rate is pretty sweet. I've used bookit once before at a different location (the Regal Sun -- now the Wyndham, I believe) and it worked out fine.
In fact I talked to an agent at the Clarion today since I had booked directly with them for my upcoming March trip, and she advised me to cancel the ressie with Clarion (direct on website) and rebook it with Bookit.
I stayed at the Clarion LBV last year. It was fine; nothing special either way. If you spend a lot of time in your room, I'd look elsewhere; if, like me, you try to maximize your park time and just need a decent sleep, its fine.
Location is very good too. I like Palm Parkway as a location (hint: use the Vista Blvd entrance into Disney property, not Hotel Plaza Blvd)