Acera components are entry-level for "bike shop quality" bikes, as opposed to what you'd find in a big box store. They're perfectly functional.

SR Suntour NVX is also bike-shop-entry. It's not a spring-loaded pogo stick like you'd find on department store bikes, but it's not built for serious abuse, either. It may or may not be an improvement on a non-suspension fork depending on how/where you ride.

If you're a big guy, you'll probably want to know the spoke count of the wheel. Avoid racing-inspired wheels with low spoke counts.