It worked very well for me.
I did a test with a model I'm working on with over a 1000 components and it took about 70 secs to export a very clean OBJ file. All meshes merged to be a single collection of all objects with one material. Comes in very nicely into Octane.
win 7 64 | q6600 | 4gb ram | gtx 260  | driver nvidia 197.13 | SketchUp7 | Softimage 2010
win 7 64 | i5-2500k | 16gb | gtx 570 | driver 275.33 | SketchUp8 Pro