The one drawback is that it doesn't have lane lines or the line at each end to tell you when to take that last big breath before your flip turn. I improvise at one end by throwing this pole that I found into the pool to let me know when to do my flip turn.
I didn't have anything for the other end so I just practice my ows sighting techniques and try not to run into the end with my head or flip too early. I don't mind not having the lane line because it forces me to try to swim straight on my own which I don't do so well, currently.
I'm looking forward to countless hours this summer watching the color of the morning sky change as I take a breath while knocking out the meters getting ready for the big races.