Aye.

Chariots do tend to require quite a lot of micromanagment, but they are very effective in the end.

Peltasts. To get the best use from these they should engage in melee only after they have expended all their javelins. Firing 5-6 volleys into the back of some powerful heavy infantry, then charging in to finish them off is often the most effective option. Head on fighting against proper infantry generally doesnt work though. Use them as a support and flanking force. No other infantry type is better at it in my opinion. I tend to turn skirmish mode off once the main battle lines have engaged, but leave it on until then.

Hetairoi aspidophoroi seem to beat most other non-elite cavalry in melee. They are also great for getting stuck into and overpowering units like peltasts. Their javelins are a bonus - not their main feature.