I've put more hours into this game than any other, the breadth of content avaliable thanks to the massive modding comunity is Skyrims greatest strength. If you play this game with vanilla settings then it doesn't hold up and you can see that its showing its age, however with a wealth of readly avalibale mods you can create on of the best looking games on the market, tailored exactly to your tastes and if you find any of the mechanics of the game are substandard you can be sure someone has modified it to be to your standards.
The game however is plagued by crashes and freezing issues with some of the mods either helping to stop them or causing them in the first place. Its a huge issue and a decent debugging tool is noticably absent which makes pinpointing issues a herculean task. With hours of work and following multiple guides you can get a stable and beautiful looking game
Unmodified this game should get a solid 7/10
A fully modded games will surely get a 9/10 from anyone who is willing to put in all the hours of tweaking