High performance electric outlets

I just moved into an apartment which has the weakest and most feeble outlets I have ever seen. There seems to be so much confusion and controversy about this subject that I have no idea where to start.

My apartment has the electric panel in the pantry closet, so I will be able to draw 220V for my ONEAC 3000W isolation transformer. The transformer has two 110V outlets and feeds all my system. I would also need two or three more outlets in a power strip next to my equipment.

Should I just get something like two of those orange Leviton Hospital Grade outlets from Home Depot ($11.00 each) to replace the ones in the isolation transformer or is it really worth to go the 'audio grade' route? If so, how can I make an educated decision?