The best part is that we can customize our apps to fit exactly what it should be like, so there's no waiting around for approval from someone else! This has really helped us get through some rough patches as well - sometimes you just need to make an update or add something new right away rather than wait weeks/months etc until its approved by people who don't have any idea about how things work in this industry (which happens way too often!).
I'm not sure of anything specific yet with regards to kickappbuilder specifically but i do know they are always looking into ways to improve their product which makes me feel safe using them at all times :). They're very responsive when needing help after hours during business days also helps out alot if problems arise :).