BRYANG  DevonThink Pro Office is absolutely the best-of-class product with world-class service and support. I have been using the product since before the "Pro Office" version was offered, and my databases have matured and expanded exponentially since then. I have NEVER (repeat, NEVER) lost data when upgrading, even when upgrading to one of the publicly released beta products.

The company provides detailed info, warnings, and procedures to guard against loss of any hard-won data when trying out one of their beta products. The improvements and features that still need work are explicity detailed in the docs. The author of the oriiginal comment seems to be, honestly, a whiner without substance.

I am still developing workflows to add onto well-established workflows using the 7th beta version of Pro Office 2.0 - this is as I discover features, services, scripts, and automator functionality that truly makes this a unique product that will last for years. Thank you Devon Technologies! And to you, those reading these reviews - I'm sure you've gained enough discernment to see through the spoiled, superficial brattiness of these casual dabblers (sometimes going under the guise of "reviewers") who loves to disparage wonderful solutions.  
(Version 2.0pb7)