I have one and it is a decent carbine. I bought it mostly for the novelty of it, and the mystique of the Tavor rifle system. Since I am so familiar with handling an AR, I really don't care for having to reach behind my trigger hand to release the bolt and change magazines. The top picatinny rail is almost aligned with the rear stock area, so you have to push your head down a little lower to pick up an AR height sight, or use a slightly higher scope mount so you can get a comfortable sight picture.
The Tavor does deliver as a rugged and solid rifle, and the handling issues could mostly be overcome with more practice. In the 400 or so rounds through it, it has never had a malfunction. The Tavor does feel like a bulkier package to me.
I do like the rifle, but for me, it is more of a collection piece than as my go-to shooter. Since I recently got a lightweight 9mm AR faxon barrel, and a slim, light free float handguard, I much prefer the handling of my AR. As set up now, it is very light and quick handling, and thanks to cheap steel case ammo, has been my most often used firearm for the last year.