I applied in-person. The process took 5 days. I interviewed at iSmash (London, England) in Aug 2016
Interview
After I applied in store and passed on my CV online I got invited to show my practical skills (those vary. Usually related to basic repairs), I passed, I had an interview with HR manager and they saw I know what I'm doing and that was it :-)
I'd strongly recommend previous experience in the technical area.