Well, I like the general concept of the cart Tomato Cart, but, at the moment you may want to avoid Tomato Cart if you need variants on a product. There appear to be a number of problems with the variant in Tomato Cart.

Today, I found a third problem with Tomato Cart variants, and maybe a fourth. On top of a few nuisance problems that are obvious as you start working with variants, this is becoming a significant problem. Other areas of Tomato Cart appear to work, but, if you need variants, you could spend a lot of time eliminating bug and it is not clear how quickly these problems will be resolved by the Tomato Cart developers.

New problems identified with Tomato Cart:

• It is difficult to match images to variants, the variant image icons are very small and there is no label associated with them. Images that are similar can not be distinguished in the administration area of the variants. Therefore, matching variant images to variants is very tedious.
• Variant Prices do not always display on the front-end display.
• Magnified images for variants of products do not match the image associated with the variants. This means my fix to problem 1 would require an extension to my original fix to problem 1.
• The Tomato Cart forum reports that there are situations where adding product values, product may vanish.
• Sometimes, creating a variant of a product, a duplicate of the variant is created in the administration area, and though the front-end displays only one variant, that variant does not display the correct information. Deleting the duplicate variant does not help, it is recreated the next time you leave the variant screen.

While Tomato Cart has a lot of potential, and is easier to configure than many carts, the problem with variants may cause you to think twice before trying to use it.