The only problem I have with the Tavor is the amount of gas you get slammed in the face with while shooting. I haven't been able to get an optic for my Tavor just yet, so it could be a product of my shooting form trying to aim through the iron sights.
I haven't shot it extensively, about 200 rounds downrange between me and a couple friends. It shoots a bit low, but I figure that is a product of the high bore axis combined with no sights and a lack of experience.
All in all I absolutely LOVE my purchase! The enjoyment can only increase when I get the opportunity to buy the accessories I want for it.
Just a few items of note: It is my first rifle, it is right handed and I am right handed.