OlausPetrus: Mean Streets is a great game. There's no need to tell people to avoid it. I understand that younger people may not like games of the '80s, because you actually have to write down stuff to be able to solve the case. But other than that there's no real reason to avoid it. It's rather impressive for a game of that age and it tells it's story well.
ecamber: I'm sure it was a good game in its time. However, the clunky interface, primitive graphics, and the substantial 3D flying sections take away from its appeal today. Would you seriously argue that it's better than Overseer?
I think starting at UAKM is a lot more likely to hook gamers in 2014. As one can tell from the reviews page, quite a few people have found Tex 1+2 very difficult to play today. And it wasn't because you had to write stuff down - I've had to pull out a pen and paper at one point or another in just about every Tex game (well, maybe not Tesla).
Mean Streets is one of my favourite Tex games actually. I don't mind those things, because games from the '80s are games from my childhood and I will always enjoy those no matter how technology develops (I own plenty of adventure and roleplaying games from that era). And for some odd reason those flying segments were actually quite fun.
Also because this place is called Good Old Games I don't avoid recommending old games to people, because many people here actually like to play the classics from the '80s. For some these games might be too difficult and primitive, but for me that's just part of the charm.