Excellent
I've used a few screen recording solutions and was careful to get one that looked like it gave me all I needed for good tutorial production. ScreenToVideo does an excellent job with all the tools you could need. The short 'how to' videos on the website are also very helpful and get you going really quickly. While I am still learning, I am very impressed and pleased with the purchase and have already recorded, edited and produced some videos.
If I had any gripes, it would be that rendering is quite slow, and I haven't worked out how to change the default colour on call-out borders so it opens up with the colour I want rather than having to choose it all the time - which can lead to errors as you change the colour..
So, because it is so good with no restrictions on output size etc, I have given it a 5 rating, while because of the slow render especially, I would perhaps push it back to 4.5.