After a couple break in hiccups (stuck choke, oil level senor wiring issue) I've been really happy with my Duromax 10,000 dual fuel. The dual fuel capability was really nice during the 9 day outage we had last year. It had plenty of power to keep the wife happy and keep my business running.
We have a transfer panel, it's worth the money for ease of use and piece of mind in my opinion. Because you know that Murphy guy makes sure the power only goes out in the middle of the night when it's raining or snowing... Flip the switch, plug in generator, and everything on the circuit operates like normal. Here's the Amazon affiliate link to the model I have if you're interested in more info on it
https://amzn.to/2Ly4pJiLate spring seems to be the best time to buy a generator, I got mine for a little more than 50% off of what they list for now.