currently we use xctool for build. Investigate whether it makes sense to replace with xcpretty[1] tool which relies internally on apple's xcodebuild.
It does providing significant build time improvements (over 17secs on aerogear-ios), and on the front. nice formatting during build.
Some big projects (aka AFNet have already replaced xctool with xcpretty)
[1] https://github.com/mneorr/XCPretty