Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

In Massachusetts right now, I'm without power. I have a Craftsman (relabeled Generac) 4.2 kW (5.2kW surge) generator. But it struggles to run my house. Even being careful with power, it sags badly (some home electronics shut off or restart) when my 240V 1/2HP well pump starts. UPSs constantly cycle between battery and AC. I have tested the voltage (116-117V per line). It's just not enough. I'll make it through this outage (projected to last 5-7 days overall). But the Wife and I have decided that a better/bigger generator is needed for the future. I'm looking in the 8kW-15kW continuous output range. Wheeled to allow its movement and runs on Gasoline. I'd still like it to be at least semi-portable.

I've looked at the Generac GP8000 and GP15000s and they look good. But what other good reliable brands are out there? Honda's big one is only 6500W.
Is Northern Tool's house brand (NorthStar) any good?