We just changed to Omnicell carts in every OR system-wide. I hate the Omnicell system itself, especially the big units in pre-op/PACU but the carts aren't too bad. Definitely a learning curve, but we really like having all the controlled substances we need actually in the OR, so the workflow has improved.
Counting is easy - ours are configured and stocked with one and only one vial of a controlled substance in each slot - so the count is always 1. This has dramatically cut down time spent reconciling drug errors. We've set ours up so that the top three drawers contain all the controlled substances. The next drawer is all our routine drugs (roc, lido, ephedrine, etc.), and the fifth drawer is our emergency/lesser used drugs (labetalol, epi, steroids, etc.) Those two drawers mimicked our previous drug tray setup so what was previously in a routine drug tray is now in the routine drug drawer.
The bottom drawers of the cart are for anesthesia supplies, which our techs keep stocked. The carts are set up so that the techs can only open the supply drawers, not the drug drawers.
Stocking is a PIA for the pharmacy folks - but they were the driving force behind getting them, and it came out of their capital budget, not ours, so I don't feel sorry for them. My understanding is that they're absurdly expensive (multiplied by probably 100 ORs), but again, not my problem.
The worst part of the carts are the printers and scanner that comes with it. The scanner wand weighs about 2 grams, is easily knocked off, and doesn't work consistently. There is a label printer that is supposed to print colored labels with drug name and dose, pt ID, our name, expiration date/time, etc - all TJC compliant - but the printer can't seem to keep the labels in the right spot, so only half the info is on the label - and it doesn't print barcodes, so we still have to manually enter a lot of drugs into our EMR. There is also a separate printer that the pharmacists use for discrepancy reports. So two printers which are largely worthless AND take up about a foot of space on each side - so the cart width is nearly five feet, which is an awful big footprint in small ORs.