Having used Script debugger for both personal use and business use now since version 3 it simply amazes me that anyone can write scripts in any reasonable amount of time without this incredible piece of software. Clearly these guys understand the pain that Applescript can cause and the days and weeks of pulling hair that can be avoided. Every version adds more and more features and it just gets better every time.
At three times the price this would still be value so if you are considering writing more that a very basic script do yourself a favor and spend a few dollars to make better, faster scripts easily and BUY NOW.