Asus vivotab 8 running W10 (as well as an insider on my desktop, laptops, Surface Pro and all my phones except my HTC 8X...).
After using W10 for about a day on the Asus, I think I can confidently say I prefer the new tablet experience to 8.1. I've always been a big fan of 8/8.1, upgraded from day one back in 2012 and never looked back, never understood all the hate it got, but all is forgiven now that 10 is here... So back to my tablet experience with 10. Initially, I suppose it was quite jarring, but I suspect that is due to the change rather than any inherent quality of being better or worse than 8.1. If W10 happens to be your very first windows tablet experience, you'll probably embrace it naturally just like those of us that loved 8/8.1 did. One thing I can say for sure is that I feel it is much more efficient in terms of navigation, multitasking and overall functionality compared to 8/8.1. Furthermore, it seamlessly blends the tablet and 'desktop' modes elegantly. You never really feel like you are transiting between two completely different worlds like you do in 8/8.1. And Edge is showing a lot of promise and will only get better, I absolutely love it in tablet mode!
Overall, it just feels tighter and more 'tablet-like' than 8.1 IMHO. What I suggest is that people give it a fair chance just like we did for 8.1. I'm pretty sure you'll come to appreciate it quickly and eventually favor it over 8.1. It just has sooo much more to offer than 8.1. It is also very well thought out, although that may not be so obvious at first. But as you use it, you begin to appreciate the choices that were made in designing the W10 tablet mode interface.
So, in short, I'm all in with the W10 tablet mode!