I seldom go with the lowest cost, especially if it's with a company I know nothing about. I'm not saying this company is bad...I just have no experience and I haven't seen them mentioned here. I did go to their website..it is minimal at best with some spelling issues.
A regular cost from Sanford to WDW is about $180, so you're saving about $50 if you use this company. Not sure it's worth it to go with a company no one can vouch for.