Easy to grow is an understatement. My hubbie & I bought an historic farmhouse and 10 acres last February, and didn't have much time to get the garden area ready for planting. Besides my herbs, the spaghetti squash was the only thing that grew in the unprepared, untreated soil. It went NUTS! We ate spaghetti squash all summer long, and had plenty to give away as well. I did have an invasion of squash bugs, but they seemed to do little damage.
The squash is good with spaghetti sauce, or just with garlic and herbs and butter. Compared to regular spaghetti, it is a bit crunchy, but there is not much flavor. Which, if you're not a big squash fan, this is one squash that can be eaten! Great to sneak the veggies in for the kids! Shredded carrots in spaghetti sauce or chili is another great way, but that's getting off-topic!
I only kept 3 of the plants (I planted from seed), and the vines took over, so either train them on a fence or trellis, or allow PLENTY of room for the vines to spread. The plants survived several weeks where I had to work late and didn't get home in time to water them, and while they wilted and lost leaves, the plants still kept producing fruit! I was amazed. This year I am growing them on the fence!
I planted two varieties of squash in '09: Spaghetti and Buttercup. The 'sghetti did the best, with 3 over 10 inches long / 6 inches across! But neither variety really did very well, relative to how many seeds were planted, due to rotten (cold) weather during mid-late summer...