I think BIAB can be convenient and easy for most, as well as pretty cheap and without a ton of equipment.
For me, I like the set up I have because I'm an older weakling.
I have a traditional HERMS single tier, and it means I do very little lifting. When I started on the stove top, I was lifting and pouring and it was a bit tough on me. I still did it, but I would ache at the end of a brewday.
I went with a two tier, and that helped, but then I went with a single tier (with two pumps) so I never lift any wort or water at all. I have a "tippy dump" on my mash tun, to make it easier to dump out the grain without lifting as well.
If I was a guy, and younger, I'd probably go with a BIAB. I just can't easily lift the things I used to and that would be the only downside for me.
(That, and I brew indoors in my finished laundry room. Drips would be a mess for me!).