For a value for money product, I would happily give this five stars. Naturally the IPad and other tablets at twice the price are better hardware, but for the price this is unbeatable. It's more than adequate hardware for the job, everything works surprisingly well, programmes start up fast, transitions are smooth, video and audio playback are excellent.
Definitely five stars, but...
Arnova, as do many low end manufacturers, mess with the Android operating system to maximise their profits. That's fine, it's their business, but it also minimises the users experience. They put on a very poor app store of their own, leaving out Google Play, and using standard Google products such as GMail and Calendar is practically impossible except through the browser.
If you're a hacker, it's not such a big deal. An hour with ArcTools (which can be got through the Arnova Apps store) puts it all right and you end up with a fully functional Android tablet that performs well at a low price, a five-star product :)
But if you're not comfortable with that kind of thing and need GMail and Calendar apps, maybe it's best to go for the later, more expensive models, which don't mess around with Android.
Me? I love it!