I live in the suburbs, not really any high rises around be but some townhouses, I can “see” 180 nodes, but I can’t reliably message my friend 1km away. I get a lot of messages on the public chat but if I send one it’s a 50/50 if it will be acknowledged by any nodes.

I tried it while staying in a high rise hotel and the experience was great. Instant acknowledgement and super reliable communication