2300 hours and that just since I started playing through Steam. 15 years and even when I take a break I return to this game. No other LotR game provides the depth of story, and breadth of characters. If you just want to have MMO fun it is here as well. Level fast; make new friends, raid or don't there is something for everyone. Content continues to be produced. I will be playing this until 2037.
It is fun; does it have lag? Yes sometimes. Are some people asshats? Yes every MMO has them.
Be kind to others and it will be returned.