Firewall: it either works or it doesn't; it doesn't matter who made it. Which would you feel more comfortable with: the firewall made by a $40B company, is a core part of the OS, and is used to secure enterprise networks or a firewall tacked on to make some product appear to be a better value?
GlassWire provides a user-friendly interface and a reasonable level of control without being a nuisance. It also will detect changes to files and network settings and notify you, so it's a HIDS as well. Qihoo chose wisely and they didn't reinvent the wheel with an inferior wheel.