good rifle, I have a standard model fs2000 with the "integral scope"
positives: accurate and reliable, balance is great, most natural shooting CQB carbine i have ever shot. even with the "integral scope" the optic is removable and compatible with picatinny rings (i have a grsc on it currently)
downsides: horrendously bad trigger that feels like a Staple gun (NEU trigger helps some, but still not great), selector lever is kinda awkward, lack of options for handgurads (really want a monolith arms handguard but too bad unavailable), Lack of options for iron sight replacement (on either model), mags dont drop free due to waterproof skirt in the mag well, some polymer mags wont fit in the mag well.
in comparison I have shot an aug, but not a tavor, i like the FS2000 more than the aug