For a couple of months, I've had to water the grass manually because several of our sprinkler heads were broken. They're pretty easy to replace, but for some reason it took a while for us to buy new ones and then take the time to put them in.
Now that they're in, I really appreciate our sprinklers so much more. It's so tedious to stand out there and water the grass. Sure, the water feels nice on a hot day, but still, I'd rather not have to be the one doing the watering. I did buy one of those oscillating sprinklers that you connect to a hose, but it hardly seemed effective. I still ended up manually watering our trees and the parts that the sprinkler couldn't reach, and also the front (I let the cheap plastic sprinkler water the back, while I took care of the front). It would take me between 30 minutes to a little over an hour depending on how much I felt I needed to water it on any given day.
I even got a nice tan in the process. :P
I'm not able to use our sprinklers on timer though because one of the valves still needs replacing. But manually having to turn them on and then back off is still loads better than watering the grass by hand.
I dislike having a lawn in general. If ever move to another place, I definitely don't want somewhere with any grass at all. I hate having to water and mow it. Meh. No more grass for me. Hardscaping all the way! Or maybe some bushes or something that requires less upkeep than grass.