I would expect an epic fail from this, for one simple reason..... the thing that kills FET's is heat. Yes it might be the current that generates the heat, but getting heat away from the FET's is key to keeping a controller running. Thermal mass is everything !

The 4QD NCC-70 had a large lump of aluminium on which the FET's were mounted, which in turn people tended to then fix to their chassis - creating a large heatsink, and as Mario says, by using relays to switch the direction of the bridge, more stresses on the FET's are avoided. The 4QD NCC-70 is now rebadged as the VTX http://www.4qd.co.uk/prod/vtx.html but you can still see the FETs mounted to a large block of aluminium.

Even the good old Sidewinder had a decent thermal mass (the ability to absorb heat away from the FETs) and spread that energy through a number of FETs which in turn spreads out the heat.

You'll notice most light weight speed controllers that don't have thermal mass rely on active cooling (the Victor IFI for example has no heatsink and a fan) - my view is that's not the way to go, I don't want my robot not blowing up to rely on some flimsy bits of plastic whizzing around.

My advice, for a heavyweight, unless you SERIOUSLY know what you're doing, and have pots of money to play with, stick for something proven - you don't want to be playing at experiments

This speed controller weighs 60g - to give that some context the FETs alone in Storm II's original controller weighed 250g !

Conclusion, no thermal mass, not built for the kind of high-current breaking that robot motors do throughout a fight = FAIL