Standard transmission BMWs are much more reliable than their automatic counterparts. That's about the only positive of this choice, though. This car has high mileage, it's the 1st year for that generation (it's the E90 generation). 

I wouldn't buy this as a daily driver. BMW introduced their electric water pump in this generation ($500 just for parts to replace one, and they are known weaknesses). Even the most basic maintenance is a pain in the rear end. Scotty did a video back in Houston on one, diagnosing a misfire. He needed multiple extensions and swivels to even get back to the spark plugs on the rear half of the engine. I'm pretty sure you need a BMW-specific spark plug socket as well. I could be mistaken. 

As a weekend toy it might be fine, but I wouldn't drive it to and from work every day. They're derisively called Break My Wallet and Endless Money Pits by Scotty for a reason.