I do. It's heavier, which is nice I think.
Built in rechargeable battery you cannot get at or change. Plug it in to USB-c, or plug its case in and set it in the case for charging.
The RB/LB shoulder buttons can be changed so you don't pull them as far. On Series 2 this was improved so that changing the throw distance of the button still registered the full 0-100 range. This way if you are using it as say a throttle you can still go full speed, you are stuck at 25% motion as you were with the series 1 (unless you fixed it through software + the controller option)
The swappable sticks/d-Pad are nice, but I mostly just use the standard setup anyway. The ability to change the tension of moving the sticks is also cool on this version compared to the first, but not something I've played with.
To me, the biggest reason to ever have an Elite type controller is the ability to use paddles. They can be mapped to any button. They CANNOT be made any kind of macro / button combination. For me, I used the 4 buttons to replace A/B/X/Y so taht I could press all buttons without ever having to take a thumb off the sticks. this was great for having full movement/look (strafe/aim) control while still being able to perform any jumping, sliding, throwing, shooting. All personal preference, I know others that liked to tie them to the stick click (R3/L3) so they didn't have to press the thumb sticks down.
All the other features are nice, but I don't personally think it's worth the investment unless you really want the paddles and intend to get a lot of use out of it. In hindsight, I wouldn't have ordered my Series 2, as I just don't play enough anymore to be worth it.