It’s not Abbott’s fault that no other manufacturers have got off their arse to produce a rival system. In my case, like Mike, I’ve had not a single problem with the sensors I’ve used. I’ve not had a problem with Abbott customer service, either, though the website is rubbish.
With regard to cost, if you compare the cost of the sensors relative to the eight or nine tests I do each day (so the reader tells me), the cost is not so outrageous compared to test strips. The difference, of course, is at the moment that cost falls to the user.
And as far as Abbott limiting replacement of sensors that fall off, I’m not in the least surprised, particularly with folk who can’t walk through doorways without hitting the sides.* The reason they have introduced this is because of NICE approval for prescription. People will take less care when there is little or no financial investment.
*If I can walk through doorways with an unsteady gait and using a stick without hitting the sides then anybody can. Of course, if you stick the sensor on the side of the arm instead of the back, such interactions might occur.