Just to add my perspective…
I used the Wahoo TICKR straps way back when Strava originally provided HR connection without a premium membership. Got one for my wife also, for same reason. Worked fine.
Then Strava eliminated HR connections from the free membership. 
I was very angry at the loss of HR data on Strava rides. Eventually subscribed to paid membership after a LOT of griping. Not too much longer and was having issues with the old-style TICKR BELTS. Plastic sandwiched connector points were coming apart. Did some super-glue repairs that held awhile… Finally had one failure of the TICKR receiver unit itself, out of warranty. Wife lost her HR recording (which she rarely used anyway. Found it a bother.)
Then I got a Garmin Edge 830 MTB Bundle with HR and wheel sensor (or cadence, I forget which; and I purchased the other separately to have both.)
Retired the Wahoo TICKR, with it’s imperfectly designed snap-type ends that came apart after a LOT of time and miles. But the STRAP ITSELF, which like emacdoug I basically NEVER washed nor saw a need, was a FABULOUS material that NEVER CHAFED ME, was super comfortable, and didn’t present any problems EXCEPT that plastic sandwich snap connection on the ends, which DID come apart on both belts after a long time (~3years? 4years??)
The GARMIN Dual HR, on the other hand, was treated the same way as the TICKR, no washes or rinses (my fault, the instructions say rinse every use and wash every 7 uses.)
It was a problem in a hurry! I got VERY CHAFED by about 2 weeks of use, on both outer sides of my chest, where the sensing section of the strap ended and the stretchy fabric point began and the opposite side slip-hook connection is made.
I quickly learned those straps MUST be rinsed daily, hung to dry, and washed about every week if used daily. I adapted and the rash issues cleared up.
PROBLEM IS, the Garmin straps are made with a MUCH THINNER material, and it is in my opinion, a poor strap design and material.
Maybe I’m weirdly shaped, I don’t know, but my ribs must by very angular and cause the strap to stretch more on the upper side than the lower because these straps begin fraying within 6 months use, always on the upper side of the strap relative to how it sits on my chest, and always right on the edge as it wraps around the side of my ribs. That’s where my V-shaped chest is more pronounced, I guess. (Trust me, I’m NO Charles Atlas physique. 
)
Garmin was good enough to replace this strap for me once, beyond the 1yr warranty because that was the 2nd time I called and complained about it, though the 1st time went basically ignored, nothing done.)
But the replacement did exactly the same thing in exactly the same way, and it was evident that it was occurring in probably 3 months, but it took about 6 before it really showed the rippled top edge. I haven’t bothered to call about that one because I have no confidence they know how to make a quality strap, at least compared to the material of the OLD-style TICKR strap.
That said, I have READ that the TICKR HR units MAY not be effective for some HRV testing, depending on what site or testing company you may use. Elite HRV, for example, lists the Garmin HRM Dual and HRM Pro among several others as being compatible for R-R intervals readings, though another site, welltory.com does list the Wahoo TICKR X and the Garmin HRM Pro along with many other brands.
I do use the HRV testing function of my HRM Dual on a regular basis, (as well as also using the Fenix 6S Sapphire for HRV monitoring every night, even though it’s probably not all that scientific using the wrist readings of the Fenix 6; though I HAVE seen pretty clear evidence that its nightly readings DO bear out over time a useful-to-me bit of information about significant changes in health status, as I went through a round of pleurisy and pneumonia over more than a month long period, and the HRV status and graphs are very clear showing that serious impact to my health status.)
My thought it that if you do buy an aftermarket (or other brand) strap that connects well to your existing transmitter, you may or may not be able to count on the HRV readings from that combination. (That would matter to me.)
