I think this is a great deal and just ordered mine. This is full Windows 8, not RT and should be a great little tablet. It's only 32GB so there probably won't be much user storage left but it does have a microSD card reader. It also doesn't include a keyboard. But your getting it for 25% off at a time when Windows 8 tablets are hard to even find! And plus, since you're getting it from the Microsoft store it will be a Microsoft Signature version meaning they'll have removed all the bloatware (except MS's own) and you'll get free 90 day support. And Acer is notorious for bloatware which they add to their systems to lower the cost, e.g. other companies pay them to install trial versions of their software.
I previously owned the Iconia W500 which although many people bad mouth got very decent reviews on amazon and I had no problems with it. I sold the W500 used and for about the same money I got I am now getting the W510 which is a tremendous upgrade - thinner, lighter, better screen resolution, faster processor. The W510 probably won't replace your desktop system if you use Photoshop or do other heavy lifting with it but it will make a great tablet and for lighter desktop work you'll be able to plug in a full size monitor with the microHDMI and some kind of keyboard and it will be a decent low powered system. That's how I used my W500 and expect to do the same with this only better!