I only have experience with the 0-31 switches, but have found them to be certainly as reliable as any other switch i.e. useful, but not bulletproof and generally quirky. If you search "realtrax switch" you will see that this is the consensus. Here are a few links:
https://ogrforum.ogaugerr.com/d...ent/2415514337037899
https://ogrforum.ogaugerr.com/d...ent/2415514337033283
https://ogrforum.ogaugerr.com/d...nt/11003700275929407
https://ogrforum.ogaugerr.com/d...ent/7906207207071524
https://ogrforum.ogaugerr.com/d...ent/8187868219321841
https://ogrforum.ogaugerr.com/d...nt/12129988017791841
https://ogrforum.ogaugerr.com/d...ent/2415514336700189
https://ogrforum.ogaugerr.com/d...ent/2415514336932518
https://ogrforum.ogaugerr.com/d...ent/2415514337041499