As far as I am concerned, they both express similar play style. Aggressive loose play that relies on player's biggest strength - good aim. Purri is without any doubt one of the best, and even being inactive or whatever, Covell showed that he has a promising accuracy as well (treasuring from screens). Purri could lose one map, caught by surprise. But it's barely the case, if the entire match is taken into consideration.
Long story short: Covell's game here is beyond impressive. :p
CoVell
Gerdt
molodec prjanik!