I've used regus last year in the u.k and recently in asia for my trading firm. I compared their prices with a couple of diff companies and they were pretty much the same, but they have more locations to choose from so i used regus in the end for both locations. Helpful mainly because their Asia locations speak pretty good english so i wasn't worried about details lost in translation. Some of their hotlines are 24/7 as well so I could call from London time and reach someone quite easily.
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