I really liked it, but it is very heavy and ponderous at low speeds, at least with all the stuff on it. As a daily rider and for at least medium range trips my 550 works much better.
All that said, the GL (mine was a first gen GL1000) is much more powerful than you might think, much faster than any stock 750, even with the stuff on it, and the engine is super smooth. At any speed the mirrors are crystal clear and no issues with numb hands or feet over long rides. It's fairly economical too, I got gas mileage similar to what I get on the 550.