TFs are outperformed by a number of things for FP production... but only just!
5FP / 32.5 sqr (inc 1/2 of road along shorter edge) is 0.154 FP/sqr
As opposed to SoK, 1FP / 5 sqr, 0.2 FP/sqr
and TF don't require motivating (though can be plundered!)
For goods, TF are outperformed by basic goods buildings until modern age (debatable at PE), where the lack of prerequisite goods also kicks in.
The flexibility to switch production is also great, and the ability to '1-up' to current-age-goods the moment you go up an age also.
@Bridgeman55 I also quite like the Indian Palace