Buy a bike that fits your budget, and leaves you feeling good. If that's a Diamondback hybrid, go for it.
You are buying a bike, not marrying it. Ride it and enjoy it.

If you really get into biking, you may want to trade up later on, but not too quickly. Figure out where you want to ride and how you want to ride and your budget for another bike. Then get a second bike that suits what you want to do.

If you don't really dig it, you haven't mortgaged the farm and you won't have an expensive bike shaped object gathering dust in the garage.

The good weather is just arriving. You have 6 months to figure this out.