I had problems with my s17s after a year (S/T15s were even worse!) Sold them all and moved to S19s. One failed during warranty and bitmain swapped it out very quickly.  It gets hot and humid here so I take extra precaution during the summer to keep miners under 95F.  Heat and humidity kills all miners.  If you are running where it is cold you should not have these issues.  I think they are about the same quality-wise. I really liked my first S19pro but then when the issues started I moved them to cool environment and have not had any problems for 4-5 months.