Pros.

-gives you a chance to breath in the IM

-the celling is pretty.

-you can look at the clock when you turn to see your time.

-if you sneaky, you can pull on the lane lines.

Cons.

-you can actually hear people cheering for you.

-your coach feels the need to wave at you while your swimming.

-hitting your head in the walls.

-hitting your hand on the lane lines feels like a knife, slicing your fingers off.