That's the tank i have. I really like it. The opening is a little small, but it would be ok for feeding if you only have one betta in there. I have the tank divided in half, so I lift up the whole hood to feed them. I don't use the filter it came with either...I use an AquaClear 20 (I love that filter).
One thing to keep in mind though, and the picture on the website doesn't show it, is that because of the hood's shape, a marineland biowheel filter won't fit unless you modify the opening on the back (if for some reason, you ever felt the need to put in a different filter other than a whisper or the one it came with). Most other filters should work though.
here's a picture of the hood
Other than that, it really is a great tank....especially for the price. I live in a dorm, so it was a good size for the space that I have.