What is the crowd's opinion of Clearview?

From 3.5 billion comments

Clearview appears to be the most modern reader. Support for a slew of e-book formats, including .chm. Costs a few dollars in the App Store, but a small price to pay for a better reading app than the open source alternatives.

Trial version can be found on the home page: http://www.canoejoy.com/

Full version in the App Store: https://itunes.apple.com/us/app/clearview/id557090104?mt=12