i've danced salsa for 4-5 years now and i find myself made for it. i also know some places, this time in szczecin:
"kontrasty"-wednesdays & fridays
"kafe jerzy"- thursdays
"cuba libre" - fridays
BVSC (Buonia Vista Social Club) jasne błonia (open air rueda de casino course) - fridays (if the weather allows)
torun:
"latino" (poor but sentimental;) ) - mondays and wednesdays.