I had a similar Diamondback and liked it fine. It’s true they’ve barely updated it, but it was right up to date and a good design when they launched it in I think 2016. They’ve kept the build up to date at least. Over the years they repurposed the 27.5+ version into a 29er and made a carbon version. You can find community support in the MTBR thread though it’s slowed down a lot since the late 2010’s