i have an older cervelo R2.5, (2003?) the seat tube had a crack near the bottom bracket, so i got the frame for $300, but Calfee repaired it for $200, and since then i've put approx 40,000 miles on it without issue, it is 14.3 pounds with my race tubular wheelset.
overall i think the fact that carbon frames are here, and have stayed at the very top of the long list of quality bikes speaks for itself, you will of course hear of failures here and there, and i have no doubt a CF will not survive a dramatic crash or mistake with a garage door as good as alum or steel, but aside from the weight the CF ride just SO MUCH BETTER than anything, with the drive train responsiveness, lightweight, precise steering AND comfortable flex where it counts due to the variations of lay up.
I have a steel Basso ss/fix, titanium litespeed MB, titanium Dean gravel RB, and alluminum fatbike.
I am an older guy and been called a retro grouch by friends as i'm not very interested in pursuing the latest craze, but carbon fiber just isn't in that club anymore. Wasn't it 1990 when Greg Lemond first competed on CF in the TdF? that's 25 plus years ago.