So I grabbed Crimson Dragon even though I had very little interest in it. I read some reviews and watched enough gameplay to know it isn't my type of game at all, but decided to fire it up for a couple of minutes and give it a try.
It took me about 2 missions to get into it and over the last couple of days I've spent a couple of hours every evening playing it (and finished it last night on the easy mode). While I agree that it isn't a great game, I did find it very entertaining and it did a really good job motivating me to keep playing by using upgrade rewards as well as achievements. It might have the best achievement pacing I've seen in a game in a long time, it feels like you are constantly unlocking great achievements, and it keeps you motivated (assuming you enjoy achievements).
Anyway, I just wanted to mention that it definitely is worth a try, even if it isn't your type of game. Don't just skip it, since I had a huge amount of fun playing through the game.