Review
We were a reseller for IYD and in Sept 07 decided to go with goDaddy API as IYD did not have an API (this was at the time that IYD was being acquired by Tucows). We were content to let existing domains remain with Tucows.
However, in the last couple of months, we have seen a number (we don't know exactly how many - only that our commission checks have dropped in half) moved to Hover retail (a division of Tucows).
This is made out to be our fault. Tucows tells us that our customers could not reach us and thus reached out to IYD (this is, in our view, nonsense as our customers were not aware there was someone on the other side of us). Thus our customers ended up in the arms of Hover.
There is not a lot of money involved here and we will advise the rest of our customers who are still with Tucows and Hover, to transfer, but there is a cautionary tale here which we are happy to share with others looking at being resellers for Tucows.