I have the Evoke IP custom 440s and for me they are awesome. All the different automatic sound classes are so fine tuned to what is needed. It gave me significantly extra comprehension in all sound situations and the sound quality is beautiful. I use a COM-DEX to stream to iPhone and can then take it off if I don’t want to steam calls direct. The F2’s stream without any intermediary devices. There have been huge advances in sound quality and design, it’s a very exciting time for those affected by hearing loss. I don’t understand any speech without them, so I know I am extremely fortunate to enjoy this level of hearing and such great and relaxing sound quality everyday.