I like that it was easy for me (a newbie) to install in my own server with no problems since they have all-inclusive packages. It's very fast compared to other services we've used previously - also their support team is really great! The fact you can't see any errors during setup made our transition easier than expected. We had some issues getting prerendered links working properly but after contacting them about this problem, things worked out well again. If you're having trouble figuring anything out just ask around the community and there are plenty of people who use precrawl as well so don't hesitate asking questions if you need help solving something.