I'm a current namecheap customer as well. When I have to use your management interface for something, I feel like I've been transported back in time to a cpanel interface ca. 1999. I have 25 some odd domains but you can't show them all to me at once unless I expand preferences and select "all" which, by the way, I have to do every time I navigate back to the list.
It's a minor quip (and just one off the top of my head), granted, and otherwise I'm a happy customer, but am very tempted to migrate as well as my domains come up for renewal.
Any screenshots or other indications of where you might be going?