I highly recommend trying it - for anyone who thinks they can make it all the way through to the other side of the revision stage. But honestly, the most difficult part for me was making the cover.
Now, obviously, you can hire people to do your design for you. And sometimes you can even find people to do it for free - but in that case, you're asking a lot of someone, especially if you want to do it in a specific time frame. So after poking people around a bit, I did it myself.
I went through a wide variety of versions - blue, black, orange, different fonts and font sizes. I stuck with the clock image throughout the whole process, however, because I liked it. I asked different people I know for feedback - which versions they did and didn't like and why and eventually I got bored.
I get bored very easily. So I made one final version that was completely different from the others, and then said, "That's it, it's good enough."
This was due in large part to a piece advice from a coworker, which was not intended to be advice and spoken in relation to something entirely unrelated to my book. The advice (paraphrased into my own words) was this:
There's something to be said for perfection, and there's something to be said for getting it done. Sometimes you need to just get it done.
And for your own enjoyment, I will post the old versions of the cover here, and you can decide which one you like best. Oh, and you can buy my book, too. It's on Amazon: click here.