We need more info. - exactly what are the offering you?
I have never heard of them - have you read the "how to buy a timeshare," articles on the TUG Advice page? (Top of page > red bar > Advice.)
The critical steps:
Independently verify EVERYTHING - don't take their word for anything.
Don't send any money until you have verified everything.
Ask the seller to request an
estoppel letter from the resort mgmt. company - an estoppel prepared by the seller himself is worthless - it must come from the resort.
Ask for a formal contract, and make sure the resort description, and terms are correct in the contract.
Find out exactly who is doing the closing? Do they do it in-house, or use an outside closing/title company - who?
Once you have all the details - vet the offer here on TUG.
Don't be afraid to walk away if things don't seem right - it's a buyers market.