I’m not saying that AceCad BIMReview is a great program, but its another free tool to keep in mind.

There is also a good list going at http://bimblog.bondbryan.com/interoperability/, which includes:
BIM Surfer (open source WebGL viewer)
Constructivity Model Viewer (PC only)
DDS-CAD Open BIM Viewer (PC only)
FZKViewer (PC only)
Solibri Model Viewer (PC and Mac)
Tekla BIMsight (PC, Windows tablets, iPad and iPhone)
xBIM Xplorer (PC only)

Anyhow, to try BIMReview Lite, download the installer at:
BIMReview – BIM Project Collaboration

Install ‘core’ only.

Switch to the free version by direct text editing this file.
“C:Program FilesAceCad Software LtdBIMReview 7.2BIMReview.exe.config”

Like this:

Or in Options:

I noticed some cutting errors when opening IFC from Tekla (the beam ends should cut back):

Supported filetypes: