You'r phone is eligible for w10 update, so it will be a hit or miss as to whether or not you end up with GDR2. If you don't mind getting W10 on your phone as well then I would say go for it.
Keep in mind, MS wants and needs feedback, but doesn't want you to brick your primary device. So if this is your main device and you don't have the means to get yourself a new one if sth happens, then don't update. Read through the forums to see all the problems so far