I tried FF and I found it decent.
Level DesignI first started out in the map 'Cornfield', I was really disappointed at the crappy level design of this map, I never really liked Cornfield in TFC, but in FF it looks almost exactly like HL2, with the combine stuff and all..
I then got a taste of 'Crossover', I really got a Quake-ish feel to this map, but I must admit, this map looks pretty awesome!
Then I got my share of 'Aardvark', a new map between the classics. I think this map looks decent, but the layout really sucks mah' balls.
As last, I got to try 'Push', this was never a populair map in TFC, as a matter of fact, most people hated it. The layout is almost exactly the same, so I don't see any difference coming in that. I really got a CS:S feel to this map, another bad thing that I noticed, was that the supposingly grass was purple with stripes, you know what I mean..
ModelsWell, I can be really short about this,
the player models suck. The weapon models are decent, some are nice, some are not.
Overall GameplayI think the classes are decently balanced, judged from the time I played. Pyro is fun to play, since I can actually kill people with him now. I played for a lil' less than 2 hours, and I played about 1 hour of Pyro.
The HWGUY can overheat his minigun, which I think is a nice adjustment to just holdin' teh MOUSE1 button..
Overall OpinionFF has taken a step in the right direction, but for me it plays too much like Quake mixed with the ol' TFC and generaly looks too much like HL2. This most certainly isn't a game I see myself playing a lot but despite all of this, with the right updates, this could be a great game for those who like it. I think TFC is more fun than FF.
I personally want my taste of TF2, which seems awesome.