As an entrepreneur, I've always found it really hard to balance my perfectionistic tendencies (for which I blame my German and Swiss upbringing) with my impatience (for which I have only myself to blame). I feel like so far I've followed Reid's advice to the letter.
On the other hand, I find it extremely hard to point to a single entrepreneur who's happy with the product in its current state. The product you have comes from the ideas two weeks ago that you implemented last week. Your thinking is always ahead of reality.
Here's my method to avoid being torn apart by the dichotomy of perfectionism vs. impatience: First, you cut features until it hurts. Then out of the remaining features you choose one or two that deserve your perfectionism. The rest can be good enough.
Fewer features, few of them great, most of them just OK.