For starters, Odenza offers a huge variety of resorts, but there are quite a few of their resorts that aren't well-reviewed by guests, or that can actually be booked cheaper than the $40/night fee they charge. And they also charge a bit too much for their upgraded resorts. They do have a lot of great resorts that will save you a ton, but you'll need to do some sorting an sifting to make sure you're getting a quality resort that's ALSO a really great deal.
On our program, we're pulling user-reviews as well as pricing from other sites like Expedia and Hotels.com, then throwing out the resorts that aren't well-reviewed or don't save you very much. In fact, if we can't save you 40% compared to Expedia or Hotels.com's prices, we'll throw out the resort. It's going to make finding a great deal MUCH easier.
Odenza's certificates do have an expiration date, which will be about two years out. You'll need to complete your trip by that date, which means you'll have to register your voucher with them a minimum of 60 days before the expiration date, but sooner is even better. On our program the travel vouchers never expire.
To register your Odenza voucher, you will need to pay a $100 deposit, which will be applied towards the taxes & fees of $40/night when you finalize your booking. On our program, there won't be any upfront deposit. The taxes & fees on our program will vary by resort an on average will be a little higher than Odenza (ranging from $25-75/night, but the majority of the resorts will fall in the $40-75/night range). This allows us to include many resorts and travel dates than Odenza is able to make available, making finding the perfect vacation much easier.
On Odenza's program, you will need a major credit card, as they don't accept debit cards. You can use either a credit or debit card to book our program (although a few of our resorts may require a credit card when you check in).
Finally, Odenza only allows you to redeem one voucher with them every 24 months. And the don't allow group travel (ie, using multiple vouchers to book multiple rooms for a group of people traveling together. We don't have either of those restrictions.
You can view a sample Odenza voucher here.