Tree streets are a Nashua thing, Manchester has its own sub FYI:

https://www.reddit.com/r/ManchesterNH/comments/

South of bridge and north of valley seems to be the roughest area - and relatively speaking its not that rough. Check out the crime map:

https://www.crimemapping.com/map/nh/manchester

Homelessness seems to of ticked up since the pandemic, pan handlers and people rooting through unlocked cars is on the rise.