assalamu alaykum
Sufis claim they're spiritual? I know ''sufis'' who believe they're undeserving of the term as it's associated with purity and true closeness to God, and yet they're the kindnest most humble seekers masha Allah.
A characteristic that I've seen attract people to a 'sufi' is his/her tendency to apply the strictest ruling for themselves and the most leniant for others (and their gentleness
) 'Salafis' don't tend to do this.