I've had every Note since the 2. I recently came from the Note 5 to the 3T. I can honestly this 3T is better in every way possible. Connections, speed, battery life, etc... I only used the S-pen for signing stuff or if I remembered, so no big loss there.
A few things I do miss from the Note line is S-note and the Samsung calendar since I was so invested in those 2. I'm sure there are work arounds for these, but I'm OK.