At a first glance, one might be tempted to say that this is just another Tree Style Tab clone. And without many users, why even try it, right? But one couldn't be farthest of the truth by that.

Having tried Tree Style Tab and Tree Tabs, this is far the best of the three, but by a large margin. Why? Because here you feel you always know how to make the addon work for you. Does it look great? Indeed it does, but so do the others. Do tabs become well organized, easy to find? Yes, but to some extent so do they on the others. Is it stable? Indeed it is!, but so are the others for the most part.

Where Sidebery shines is in its settings. For there you feel you are in control. Every option is clear, well organized and aimed at some user case that might suit your particular needs — even those you didn't think you had.

All in all, Sidebery is a great addon, stable, sane, easy do use and configure. And in this particular arena of Tree Tabbing, it's also clearly the winner. So, should you try it? Most definitely!