from my personal experience, I say qubeley is NOT a competitve suit.
its too open for attacks and if your team gets rushed..it's as if the enemy team is 4v3(as in them 4 and you 3).
Qubeley's only option is to turtle and only shines by turtling and range spec.
Furthermore, spec is not easily gained for qubeley.
I also left out something.
The more damage you take, the more spec meter you will gain.
So taking damage IS your fastest way to gain spec, but it's totally not worth doing.