Hi, Welcome!
I think that real fire is better than no fire so gas is much preferred over electric imo. The Q comes in three sizes, 100/200/300 series, and some have features like a thermometer, shelves, and cart.
Here are a few questions for you to consider.
-Do you need to travel with your kettle? If so, a Q is a great option. If not, then a genesis may be a better investment. You can also rig up a large propane tank with an adapter hose if you have one.
-What is your budget? I see you have posted on classifieds. Great gassers can be found at any price range but usually the Q's are less common. Even more so for the ones with bells and whistles like shelves and the cart.
-Are you willing or able to put work into a bbq? The cheaper full size gassers can cook well but are usually a few years older. They still last a long time. Be careful of models where the burners are not available. In general, the burners, grates, regulator, igniter, and flavorizers are the parts that *might* need replacement.