I definitely think the game is worth it, however, I do think the Rose imbalance killed the multiplayer aspect for a lot of people, and it being almost 2 weeks after launch without an actual patch for it is far too long, and is kind of telling of the lackluster support the game currently has in place.
There's other issues though, that most who are able to play don't know about. This game absolutely HATES intel/radeon laptops. It simply wont start without crashing on most of them, even while the system specs meet or exceed the min. requirements. The real problem for that then comes from the EA staff simply telling you to update your drivers. I had to try over 50 drivers for each card, going from windows 8.1, to 10, to windows 8, to 8.1, to 10, then back down to 8 before I found a driver set that worked, and even then the game wont recognize the keyboard/mouse right away, I have to alt tab out, open up my device manager, then open my radeon card under display adapters, then for some reason I can go into the game and it will recognize my keyboard/mouse. But, every time I launch the game it still tells me to find newer drivers, none of which work without crashing the game. This is a huge glaring hole in the coding of the game, other multiplayer games with much higher system requirements will work great, without a hitch. But PVZGW2 absolutely hates intel/radeon combos.
Still, even with those issues, that kept me unable to play from Feb 18th until Feb 26th before I finally discovered a fix. The EA staff I live chatted with completely wasted my time and thought they knew the fix and thereby closed the chat before their nonsensical tips failed (right click the game in origin, repair, lol, right).
There are still a LOT of people who can't play, and I can't chat with every one of them to try and work it out. For those people, I would definitely say the game was a waste of money at this point.
