The deal is okay, but I think I'd spend the money on the larger tank vs the kit. Its all about your preference though. I do like the heat mats though. Just depends on what you like. You can easily keep them warm in the winter with a red or black bulb.

If you have a decent water area for them, the humidity will be fine. For those making a land terrarium with just a water bowl, 70 to 80 % is best.