There is precious little evidence of the cavalry for the republican period, which is when this set is supposedly set. For that reason it is difficult to say how accurate this is, but there are other reasons why this set is a big disappointment.
Italeri clearly felt there should be a cavalry set to match their Roman Infantry set. Usually this would be a good thing, but there is much debate over how big a part cavalry played in Roman armies of this period. Without stirrups, it has been argued, the horseman could not have had the control necessary to be effective in battle. The now famous Roman four-pommel saddle resolves that problem, but there are no images or references to it until the Empire, so the box illustration showing it is probably not correct for our period. While the horse poses do not have this type of saddle, two have a saddle of sorts, but it seems clear that the Romans did not use saddles until well into the Empire. Equally, all three horses seem over decorated for the period.
The men are wearing pretty much the same clothing as the infantry. This could well be correct, although the helmets would have been different, and generally rather more ornate, as befits the higher wealth and social status of these men.
As with the infantry, we get a woefully inadequate three poses - two wielding swords and the third a spear. All three are armed with the same gladius as the infantry, a largely useless weapon for attacking opponents on foot. The cavalry sword was considerably longer, as it had to be, which is a significant failing in this set.
For no apparent reason, this set also includes two foot figures, perhaps to atone for the lack of poses in the infantry set. However, just one example of each pose really makes no difference.
Perhaps Italeri would argue that the lack of reliable evidence gave them a lot of artistic licence, but the short swords and the saddles clearly seem to be errors they should not have made. Coupled with the tiny number of poses, well sculpted as they are, this is about the least impressive set Italeri have done to date.