I’ve used these both above and below ground. If you have hard water they can be a nightmare, the emitters or lazerline clogs up. If you don’t drain everything well before a freeze, all manner of stuff can break. Pocket gophers find the line tasty on occasion.
Don’t think for a second they are worry free.
Hard water, hills, distance to the garden all work against drip hoses.
I guess if you plan on harvesting, and canning tons of food, it might be worth it, but we just do some tomatoes, peppers, garlic, and zucchini, and I hate tripping over the hoses all the time.
OTOH I've heard (no personal experience here) that if you have a water softener, the chemicals in the water are no good for the plants.