Old and still great
This game runs on really old machines quite a bit, considering the game is 10 years old! And it's got great graphics for the low-performance level!! I should say though that Half-Life 2 is much better, 6 years newer and much better physics especially. But if you want the full storyline, you'll definitely want to start out with the game that it all started from!
Another thing to mention is because of it's continued popularity, Half-Life isn't something you are going to find for 10 bucks easily. Several games from that time period you can get for 5 or 10 bucks pretty easy, Half-Life you are most likely going to find at a good 10-15 bucks, but a pack like this with the expansions or goty edition it's not going to be cheap. It is still worth it though!