Hello there timshort!
What do I like about it? Huh. I guess I find it easy. Compared to, say, running for 30 minutes. You pick a weight that you expect to be able to lift X number of times. Let's say 10 times. It's easy to do for the first 6 times. Then it gets slightly harder. Then maybe the last two times are difficult, but you can do it. (After all, this is "lifting with correct form." So if the tenth time I have to do something like wiggle my hips and shoulders to get it up there, then that was too heavy.) Anyway, the difficulty, and any unpleasantness associated with that, is minimal and brief. You do this relatively easy thing and then you get to sit rest a couple of minutes. (This is why gyms are full of people sitting and looking at their phones lol). Everything is calm and measured.
I will be running on the treadmill for 30 minutes today. It's going to be boring and uncomfortable! Although I will eventually get into the groove and feel good in some ways, too.
Lifting weights can make me a bit sore or fatigued, but it mostly feels like I have had a massage from the inside.
I do like the results I see in the mirror. My posture is better. I have a shapely bum, lovely shapely shoulders, and my legs look great. (I will never have a gorgeous midriff, because of pregnancies). But these results can take a while to see. However, there's always the satisfaction of getting stronger. Seeing the numbers go up in your lifting log, or travelling with a massive suitcase and not panicking when you discover that the lift or escalator at the station is out of order because you can carry it up the stairs.
It is excellent for helping to lose weight, but no exercise can really do that without also eating fewer calories.