I have seen a few inconsistancies which I have listed below ...
General Info Tab : Now recognises version C3C 1.22f where previously it was listing 1.15f.
Units listed as 286 where in game, units only total 235 ... this may be as a result of captured workers not being counted by the game but counted by Assist. Perhaps you could list captured units seperately.
Territory Tab : Under territory info, how is TIles owned calculated ? Assist lists this as 1127 but if you calculate the percentage as listed on the Victory screen this should be more like 4352. Of course this asumes that the Total Tiles as listed by assist are correct.Using same method, Domination Limit is way out as well. Under territory statistics, roaded tiles worked etc now works but the listing for workers is incorrect ... even allowing for captured workers, the number still is out.
Technology Tab : Beakers per turn is incorrect and the turns remaining is actually double what it should be.
Trade Tab : Lists workers that I can buy but when you open talks, the nations listed don't have workers for sale.
Corruption Tab : Total science per turn and Corruption are incorrect though not by much but the Net Gold per Turn is listed as -138 when it should list +58 ..... there are no gold per turn trade deals in force so unless there is an element i'm not aware of, this is way out. Under city info, what purpose are Corruption and Waste ... they don't in any way correspond to actual figures for the cities concerned and also nearly all cities list 0 shields.
Culture Tab : Total culture for city is correct but it lists Culture per turn as -167 ! Also doesn't list Temple as being present byt this may be due to Statue of Zeus created temple.
Cities Tab : Under improvement info, shields again are listed as 0 for nearly all cities. Also, totals for Corruption, Beakers and Taxes don't correspond to actual figures at the cities.
I think this is a great tool

and I don't want you to take the above as though i'm trying to rubbish it ... it may be i'm interpreting some parts of the information incorrectly but I thought i'd list my experiences to see if anyoneelse finds anything similar thereby giving you something to work from.
All the best.