Excellent, with suggestions.

Been using for a few months and love it. Prefer over the MFD lists in the Cirrus. Also a big fan of ForeFlight. The sync feature of Checklists is great and Ive suggested they incorporate that idea into ForeFlight. Ive also suggested Checklists be incorporated into ForeFlight. This would eliminate a lot of back and forth between apps and clean up the iPad issues. Others have suggested and I echo...need an iPad version.

grandpa ralphs green bean about ForeFlight Checklist Pro for iPhone, v2.2.3