Profoto flash and packs are very good, I recommend them a lot.
Very easy to use, set up, make adjustments, easy to attach/detach modifiers etc.
Packs are quite heavy though, I was surprised, but you can easily carry pack in one hand, stand/flash head in other, camera bag on back.
I wish I had a set up with a pack and portable heads, I want to use my lighting equipment on outdoor location but my lights are mains powered! Wondering it theres a battery powered mains pack...