I have plenty of critiques of PSL running primarily national election campaigns, the whole national level election just seems like a resource sink. I guess if they get to a certain percent they get federal money for it.
The problem is a lot of local politics are already very much on lockdown by realtor/home construction/lawyer types. They will often get unquestionably voted in by homeowners, simply by evoking the fear of housing prices going down, or taxes going up. Homeowners are often vastly over-represented in terms of voter participation, due to structural disenfranchisement of poor people.
Most people who you could organize in a given municipality who aren’t homeowners will be under constant economic pressure to follow work or new housing, leading to a lot of churn - and often leading to people just getting unenrolled because they didn’t update their address when they changed landlords.
(Honestly this is why I prefer to just work on non-election stuff with my time)