I think a lot of people will agree with me on this one.
While it is nice having a Transwarp network, there's only one destination - Earth/Sol System.
Extra transwarp locations, such as one in the Kassae Sector (Regulus S/B), one in the Bolarus Sector (Iota Panovis S/B) and another in the Kailandra Sector (Beta Ursae S/B), would make travelling across the Federation a llot easier. You could still only have a single go every 30 minutes, but at least you could deside you destination.
I will sign it without an out of game cooldown. there should be a transwarp hub close to every MAJOR fed base, this includes K7, Sol, DS9, Memory Alpha, etc. They should be in the system map, not the sector map, and, the cooldown should remain the same. Just my 2 cents.
I think the cooldown is fine for the 'jump from anywhere to a gate' aspect, but gate-to-gate travel should function just as a door without worrying about that. The transwarp network begs to be used to eliminate travel lag.
yeah, I'd atleast like to be able to say, go to sol and fly the ship through a gate that takes me to DS9, or something to that effect, kinda like the gate to Gamma Orionis, it could still have the same 30 minute cooldown.