Never on the crash button, but it gets less each time. I have found 99.9% of the time the crashes are because I typed something wrong. I still glance through the program before I run a part looking at Z depths. Also Notepad++ is your friend.
Sprut does have a steep learning curve, but once you get up that hill it get's 100 times easier. Use the tutorials and it will come together and one day you'll wonder how you thought it was so hard.