I have mixed experiences with CLEAR at T5. One time it saved the day (well, avoided a rather long wait in the regular PreCheck line). Another time, I stood stationary in the CLEAR line for a good five minutes near the very front of the line and the infrequent traveler chaos in front of me was a sight to behold. I jumped over to the PreCheck line and got through faster.

All things considered I'd be fine if they gave CLEAR the boot and had a line for First/Premium only that also allowed PreCheck privileges. CLEAR has an over-subscription problem and based on my own anecdotal experience, at many large airports it now seems to be the most chaotic option. Something will have to give eventually.

This!

Although ORD at T1 has always been a CLEAR "bright spot", at most other airports I frequent, it is a worse option than just PreCheck. I get it free from United. Can't imagine paying for it.
I guess handy to have for the occasional use, but more and more, I find PreCheck is a much better, faster, option.

Just overall efficiency of the checkpoint, they've been allowed too much space for numbers that don't justify it. They are going to be moved inside the checkpoint queuing area somewhat soon as of the 30th, CP11 will be closed down and passengers consolidated all through CP10.

We are looking at a first/business class lane too, but given the width of the tunnel area there's limitations on how many lanes can be created.

Not crazy at all, even before UA/DL bought stakes in Clear, AA had zero interest in it and actively blocks them from Terminals they control. It's no coincidence there is no Clear available in:

ORD Terminal 3
DFW Terminals A/B/C/D
MIA Terminal D
JFK Terminal 8
CLT
PHL