Recommendations to others considering fastlane:
If you want to automate your apps builds and releases or wants to capture screenshots automatically or want to code sign your app, then go for it. Review collected by and hosted on G2.com.
What problems is fastlane solving and how is that benefiting you?
I am using Fastlane to automate my various apps builds and releases. Apart from it I am using it to generate changelogs with semantic commits and versioning. I am also taking advantage of code signing (using match) with it. The major benefit is that integrates with CircleCI and other major CI systems. Review collected by and hosted on G2.com.