Honestly, I would not make the jump yet. There are so many issues that have yet to settle out. I have been a beta tester for it and installed the final versions on several computers. In the end, they were all returned to either Win 7 or Win 8.1.
On my primary computer I installed 1511 and was one of the "few" that got barraged with ads. That was the final straw for me and I cloned the machine back to Win 7.
Telemetry does not bother me as much as the privacy issues. A lack of control over updates is also a concern. I can see the day when a bad update is forced on all users and fifty million computers go blue screen.
Will I eventually make the jump again? Probably, but not for several months.