If you are happy with the way your body looks and feels, by all means go into maintenance.
BUT, if you are stopping now because you are "tired of counting calories", that could lead to a backslide.
You are always going to have to 'Count calories" unfortunately.
My suggestion, really just take a step back and figure out why you are considering going into maintenance. If it turns out that you really are happy, and you very well could be, CONGRATS you made it! If not, than take a beat and keep at it