This is my first WP build and I am glad that I chose Physio. My criteria were number of sales, the recency of the last update, the review ratings, and that it looked reasonably close to what I wanted to build.
There is lots of clear 'how to' info available to overcome little hurdles (no real bugs), and then there is marvelous Barry to quickly sort out any special issues. Physio is so flexible that I was able to build the website exactly as my demanding client wanted, all required features were available and customisable.
Wholeheartedly recommended, there's a reason why Physio is the best selling chiro/physio theme on EnvatoMarket Themeforest.