they are both a waste of space, I have worked for both here and there. Usually the shops are filthy with year old snots running down the windows. After a couple of cleans you get the standard speech, "we already have somebody who comes every month and head office say we have to stay with them".
These shops really make me angry, they are always the dirtiest snot ridden holes in the town, and they always swear that the windows are being done.
Conclusion: somebody is on the make, putting money in their pocket and not doing the work.
rant over