Your experience with custom maps?

In my experience custom maps can be a lot of fun, me and friends will play "rats" maps a lot where it's big furniture and many things act like ladders to climb on while you fight each other. What's been your experience with custom maps, and what was your favorite custom map like?

I really don't like them.
I only really enjoy competitive maps but if I had to say my favorite custom map it would be awp_lego.
I used to play the lego maps a lot to warm up my awp shots for ESEA.

I kinda like aim_botz for example. It's really good for practise.

yes i am too .. a was create cutom map for my server and for my friends. and i like it