When guests come over sure.
When it's 100 degrees in August; I'm getting in the house as soon as possible.
I hear that! If I do decide to build or buy one, it shouldn't add any more time to the mow itself. It should decrease my time since i now go back over everything with the deck lowered to help push the blades down
As for doing it every mow, I'll probably keep it off since it doesn't "help" the grass and could hurt it from prolonged use in the same direction. While I adjust my mowing pattern 45 degrees every mow in a clockwise direction, I don't see it being an issue, but like some put down an extra shot of iron the week before company comes over, it could help stand out.
Essentially, I'm not going to spend $400+ on a pre-built kit, so I may take a trip to Lowe's this summer once exams are over and cobble together something DIY for a lot cheaper.
I'll report back if I go that route and would plan to take pictures of the build and results to compare with just the deck lowered during the fall, as the summer heat may affect results.