For various reasons, I am obliged to use Windows 8 fairly extensively. In my daily grind, I use it on different computers - stationary and Laptop. I have not had any issues with it so far, as I read on forums. I have customised the modern screen to my liking. I have also installed the Classic start menu. With this I am able to experience the best of both, and use both, frequently.
I am not able to comment on the touchscreen abilities, but that is, possibly, not the subject of thos thread.
However, when it comes to a direct question, such as the title of this thread, I am drawn to comment. No, it doesn't "suck". It runs as normally, and as easily, as Windows 7.
I have (sorry bassfisher) grown to hate the expression, which I read so frequently, "under the hood". What exactly is that?
Installing? Well, imo the average person installs once, maybe a little more if there are virus problems during the life of the OS. The speed of the install is not a feature to be lauded, quite as much as it is. Ditto the start up time. There are literally, hundreds of posts, congratulating MS/Windows 8 on its improved startup time. How do these posters actually use their computers, I ask myself. I startup my personal computers once a day. Many users, and, in particular, office workers, never switch off. What is the importance of the startup time.
I would not care to comment on the performance time. On a pure users observation, I do not, I'm afraid, detect anything remarkable. I see from benchmarks, that there is a recorded improvement. In most comparisons, this is measured in microseconds. Googling will get you to one of many of these tests. Here is one at random, for example
Windows 8 vs. Windows 7 Performance > Benchmarks: Boot Up, PCMark, Browser, Encoding - TechSpot
Looked at realistically, some of the small speed improvements could have been achieved with a major SP to Windows 7. Another point here is that many new users of Windows 8 have purchased improved computers. I do believe they would have noticed the same improvement in Windows 7, by changing the platform. Comment here is that I do not honestly see four years of work showing a corresponding performance increase in the OS, but perhaps we are nearing the end of the line in software speed.
However. Windows 8 for me, basically operates certainly no worst than Windows 7 and now, having found my way around it, 100%, I will be staying with it.
it does NOT "suck"