I have the CF adapter and it works well, within limitations.
Your pace of shooting is of course limited as you lever cock the lens shutter each time.
The body holds data on all the CF lenses, maybe C as well I will check, and you can edit the list so only your lenses show, this is because when you mount the lens the meter needs to know which it is to work correctly. Manual aperture of course but focus indicator works as well as it does with HC lens. The E series lenses, with contacts, tell the body which lens it is automatically and the aperture. Doesn't add much weight, the lenses are heavy enough to mask that.
I was always fond of the 100mm planar and still am, P45+, my 40mm is the older FLE version which is good but not spectacular, the 120mm Macro is very good, the 180mm is a gem, mine is the updated version, 150mm so so but then I was never a fan on film,( it may be my copy) the 50mm, FLE version, I rarely use, too inbetween, I don't think I have mounted the 80mm as I have the 80mm HC which I find excellent and given you can buy one for the around the price of a CFE lens I would go for that so you have one autofocus quick(er) shooter.
I was in a different position having a bag of lenses when I bought the H body so adding the adapter was sensible, if I was starting from scratch I would go HC and add the teleconverter, that is excellent, and for closer work extension tubes, amazing what a standard lens can do.
Edited: All the C lenses are in the list, you can use extension tubes and converters with the adapter, V series.
Finally !! I forgot there is a sync cable from the adapter to the body, if you shoot without that it still works, but is required for flash, but slightly slows, about 1 sec, the closing of the body shutter blind as the body doesn't know when the exposure is finished so waits, the wait is short enough for me I never use the cable. Shooters I have met have always used it because they didn't realise it wasn't essential.
Edit, Edit They, CF adapters, do pop up S/H but take care, the clutch inside does wear and depending on the lens shutter may not cock it properly or intermittently and require a service on the adapter.