Sixstrings, FWIW I have that Bear Studios package. I don't have CFS3 so I can't advise you there, but the FS2002 version works well. Sadly, the CFS2 version doesn't play well, VC doesn't work at all, only 2 of the skins work in CFS2, and I've never been successful at getting the rudder trim to work properly. Elevator trim is spotty. All that aside, it's fast, maneuverable, and seems to represent the La-11 well. Is it worth it? To me, it wasn't but I mainly fly CFS2, and there was an excellent CFS2 conversion of AF Scrub's La-11 that came out here on SOH last spring that is top-notch. That is my go-to. I like the AH La-9 so I've never tried the Bear version.
Hope this helps
Steve