Depends on your use patterns: 1. If you use TrackPoint, the lack of buttons is murderous. Just a complete deal breaker. I have no idea how it passed any usabil

Depends on your use patterns: 1. If you use TrackPoint, the lack of buttons is murderous. Just a complete deal breaker. I have no idea how it passed any usability testing. 2. If you use trackpad alone, we still felt it was inferior to the 30 or 50 series. Clicking trackpad did not feel "positive" somehow; felt like sometimes it would register a click, sometimes it would register a swipe before the click. Most of all, it made it difficult to JUST CLICK. Imagine you're in photoshop and you want to select a specific pixel... if you have a dedicated button, np. With buttons integrated with trackpad, it felt that I could never select the specific pixel without it moving ever so slightly when I just wanted to push a button.