Yes, there are guns I'd not initially warmed up to that later on I had the opportunity to revisit and discovered I quite liked.
Guns I've initially dismissed and later came to own and respect:
Glock, specifically converted by a tuned up 24
Beretta 92/M9
Ruger MkIII
Ruger GP100
And, guns I've owned twice and still have no love for:
Walther P22
Sig Mosquito
Glock 17, 19, 21
FN FNS
HK Mk23
Sig 230, 232
And anything by Century Arms. -- about once every 5-7 years I buy one of their assemblies; FNFAL, Cetme, AK and after a quick trip to the range recall why I care not to own one.