This months Cycling Plus reviews both, along with Centaur.
In a nutshell
105
Pros - Smooth Shifts and excellent build quality
Cons - Heavier then it's rivals
Apex
Pros - Superwide ratio will improve your climbing prowess
Cons - Slow upshift and flexy large chainring
I havent used apex, but I wuld doubt that missed shifts would be the norm.
Either its not set up right, or you are not quite shifting right. Either way, someone with a little knw how and maybe a maintenance stand should be able to put it (or you) right in a few minutes. Maybe time for a trip t the local bike shop.
Just out of interest, what bike do you have?
You could always use a SRAM APEX wide cassette, with Shim105 shifters, 105 front Derailleur and Chainset, and use a shimano MTB 10 speed rear derailleur that can accomodate the super wide range of speeds(check for compatibility)
Just wondered how people are getting on with the apex set.
I've got them and the idea is good, the ratios are OK, when it works as intended it's fine.
But most of the time the shifting is appalling with missed changes the norm. I've tried a lot of adjusting and trimming, which makes a difference but not enough.
Anybody else struggling or is it just me?