I have both the Pocket Rocket and the Giga Power GST-100. The GST-100 is definitely more compact. I'm not sure that the power is sufficiently greater to make a meaningful difference over the Pocket Rocket.

The Pocket Rocket's pot stands are far more easy to bend. The Giga Power is a lot more solid. Is the GST-100 sufficiently better that the increase in price justified? That's a judgment call for each individual to make.

Regarding the GST-100's pot supports being slippery, a simple file can take care of that. Rough 'em up a bit. It does help.

HJ