There are PvE group dungeon style events in game now - from the main pve area look for permanent 'portals'. Entering one will put you in to a queue for a particular map. The maps themselves have various objectives around kill x number of enemies, break shields and secure an area, build turrets and defend an area and have several large raid style bosses.
Overall I'm enjoying the game now that I've got the hang of it. The PVP depends on working with your team mates as a unit or you will get steam rolled pretty quickly. This was immensely frustrating when I first started playing or when you get a team of noobs intent on doing their own thing.
Combat is fairly balanced now and I've seen less rage quits from a losing team than during the closed beta.
The best way to turn around a match is to see what classes the rest of your team are playing and fill the gap. A successful team needs the standard groupings of tank/heavy + healer/medic + ranged/sniper + dps.
The vehicle modes are a nice distinction that allow you to quickly travel around the map or try to run away at low health. Chasing down a fleeing opponent at high speed is fun. If my team is losing, the opposite team are probably camping the spawn exit. It's often worth using the sniper bot to bait them on a merry chase around the map while you team mates regroup.
The graphics have improved dramatically from closed beta - for a free-to-play game this is never going to look like Crysis or even War for Cybertron / Fall of Cybertron as it is designed as a browser based game. There is now a stand-alone installer that allows most machines to run at max gfx. I'm using an AMD Phenom II BE 4 core with 8gb and an ATI 6950 2gb without even a hint of any gfx issues. Lighting & shading are basic but at least shadows are not the blocky mess that SWTOR presented us with
My only real criticism of the game at this point is that pve is not fleshed out and what is present is generic team based shooter gameplay that doesn't make specific use of you controlling transforming robots. You also need to acquire in-game currency to purchase additional bots, which takes a day and an age and so is not friendly to casual gamers like me who cannot commit vast amounts of time to the game.