I use the Flexi Standard and the Flexi Longs with my crew. I really do like them and they've lasted a year with no major issues. We have 4 of them ( 2 long, 2 standard).
I use them more than standard leashes, although in the city I always keep them on the lock feature or pay super close attention to them because I've heard so many stories of people not watching and the babies are on the other side of the road and cars are coming, or scary things like that.
But they're great IMO for parks and beaches when you want to give the babies some room, and I think the handles are comfy for regular walks. Plus, we use "bags on board" potty bags and they are so secure on the thicker handles
