I don't think there's much to say about Reforger. Is it fun, yes it is, are there bugs, yes there are, particularly there are problems with connecting to servers, and staying connected. Reforger, while developed for console, still feels like a true Arma game, and the streamlined controls are an improvement, the game looks great, and generally runs better than A3.
Reforger is a cool little game, and I think any Arma fan will enjoy it, but if you want a bug free, and full content, full feature game, well Reforger is never going to be that, the game engine is still years away from being ready for completely full featured Arma 4.
So, should you get it, yes, but if you are still enjoying Prairie Fire, you may want to wait for some bug fixes to release before buying it.