Here are my experiences.
BBR:
Are also producing 1/43 and 1/24 multimedia kits but as far as there CF decals are concerned. Very good pattern (like SMS) but when placing them over curvy edges they tent to break even with decalsetting products used.
Avoid 
Carpena:
These are the ones I used for my Sonax. Pattern is not so good, a bit to grey but You all seem to love them when I posted the thread so they are OK, Pricing is cheaper then SMS.
Good alternative to SMS. 
Reji:
Although I haven't used these, I saw them in the shops and they had some printing errors on the sheet (black ink spots) Also their Marlboro decals are not as crisp as say S27. I think this is a new Tsjech company so we'll have to monitor the process closely.
Waiting List 
Scale Motorsport
I still have to try these but I have their CF sheet for Tamiya's McLaren MP4-13 and you can see the quality. The reference in the category but like with many references in life their expensive.
For ultimate perfection these are the one to have 
Cheers,
Guido