I've owned a t103 and t408 and they were both not bad devices. Velocity are not necessarily the zippiest of the tablets but as general purpose readers they are quite good. My experience with the t510 has not been the same though. A lot of the apps on this newer model are buggy or just plain don't work. A very basic app like the Astro file manager is buggy as heck. I understand that VM are working on apps like Netflix and the like to get them to work but when basic fundamental apps don't work that is a huge no no. Considering this tablet is 200+ USD (for the money you can get some tablets that now far outperform this one) I expect some basic functionality. This is a huge failure on VM's part. If you are going to buy a Cruz, try to get a discounted t408 for the time being. Until they iron out all the issues with the 500 series and lower the price my admonition to you is to stay away from it. Basic quality control has not been done with this series.