At the actual state of the game I would not recommend people to buy the game, here are some reasons.

First of all I follow the game since day 1 and I can clearly say that the game had a lot of good changes through its development time but there is still a lot to do. The game had major updates such as the engine one that refreshed the game, graphically only (from my point of view).
The game has greatly evolved but some of the most annoying bugs that are in the game from the start never got fixed, for example dying from walking in stairs, running inside/outside houses.
Also last update blocked some duplication method and some hacks / cheats, that is great but some others bugs came in (For example gun sounds not playing when other players shoots, you understand the problem in pvp, you can't figure out from where people shoot on you) some cars bug that despawn randomly after a server restart and the lac of optimization that limit synchronization on full servers, wont blame the game for that, can be material issues on servers too...

All of those things let me came to a question: Am I still having fun playing the game? Well the answer is not clear in my mind, but I would more likely say no. I did like the game in the past, I had lot of fun playing it but in the current state it is barely playable. So I wont recommend people to buy the game NOW, wait t'ill the game is better, more stable and optimized (sync issues) and polished of course.

Also want to mention that devs are doing updates not frequently, 0.60 took 6 months (understandable for an engine reworking) and others are kinda random to me, around 2 to 4 months.

Will edit this evaluation in the future, if needed, I hope It get better...