First off, they are not solid oak. They are MDF with the best looking oak veneer I've seen.
That said, these are outstanding cabinets. I bought 3 for my extensive Blu-ray and CD collection (closing in on three thousand and counting,) and couldn't be happier!
The machining on these cabinet is nearly perfect. They fit together perfectly and are easy and quick to assemble. Out of the 9 doors that were put together all but one fit square in the runners and the one that didn't simply required a slight adjustment of the wheel height and it, too, fit perfect.
I did have one pane of glass (for the doors) arrive broken and it was replaced immediately, in fact, to be sure I didn't receive another one broken, the customer service person sent me two...just in case!
In short, if you have lots of media and need a fine piece of furniture to put them in you simply can't go wrong with these cabinets.