Well, the kit is a mixed bag. Nicely moulded, falls together rather good, but isn't a very well mastered copy of the original.
First - the turret shape - its frontal arc curves - resembles more the A/M1, but the M4 is based on Czechoslovak licence bulit 72/72M turrets. Seems to be a similar mistake Tamiya made more than 20 years ago. A lot of the error stays hidden behind the ERA boxes, but it is still quite noticeable.
If you want to see the proper turret shape w/o the ERA blocks, visit this link to SBS model replacement turret:
https://78462f86-a-1ae83386-s-sites.googlegroups.com/a/sbsmodel.com/www/resinsets/T72-M-early-03.jpg?attachauth=ANoY7cpRzUrw1Jd_TxVVdT38o0AnjqYhoCLxfVWqaom8tj11cpKzwW-i0yRtI_nZ0qbsedIn9jfE7v-LQ-GqcDF1amPKSW4uUdIjFon4NJav4EAasITZDo5KLN_g_rcLsPsWqwa6Rbqj96AZo-OaFfgrFywirGrfSLiFnDA5ax1dppOHcAEf4PStjTCpv8tlFOke-2cwWObH1ESp7t3a4R0xn4waiOf3BQ%3D%3D&attredirects=0
Furter problem is that the lower hull does not reflect many of the M4 changes - for example the new wheel arm bump stops (damped and on each station instead of solid and only 1, 2 and 6) and the new arrangement of inspection and draining holes of the Perkins powerpack. However, unless you leave the skirts off (which happens quite often in service), you do not need to bother.
The rest of problems is rather small as the T-72/90 kits from Trumpeter are of their finer pieces. Here and there little discrepancies one can live with. I give Trumpeter 7/10 for accuracy, 9/10 for buildabilty and 10/10 for making this happen at all.