Yes. I have heard that use of incontinence devices, such as the Afex system, can retard or delay the healing or continence process.
Specifically, Dr. Patrick Walsh wrote "Guide to Surviving Prostate Cancer", which I understand to be the classic book on this topic. One of the prior HW contributors (bluebird) quoted p. 244 of Dr. Walsh's book:
"First, whatever you do, do not wear an incontinence device with an attached leg bag, condom catheter, or a clamp. If you use any artificial device, you will hurt yourself in the long run. You won't be able to recover your urinary control because you won't develop the muscle control you need."
This advice is repeated almost verbatim by Johns Hopkins at www.urology.jhu.edu and by the Univ. of Pittsburgh at www.upmccancercenters.com.
I did mention this to my doctor after I acquired my Afex system, and he was quick to agree that such artificial devices "teach" your body to be incontinent. However, as I do need some relief from time to time from the constant wetness of the diapers, he also agreed that intermittent use of the Afex system for special events was both logical and reasonable, and therefore O.K.
BTW, while I still think that the Afex system is good, I have found that their plastic legs bags are not durable. Mine developed a leak in less than 1 mo. of intermittent usage.