IWB holsters require bigger pants and are generally not confortable for all day carry IMHO.
Galco makes good stuff though, so buy with confidence.
This.
Most people who carry daily are fibbing if they say it is comfy all day and they love xxx holster. Or someone who has rarely carried.
You will never get more comfort than a belt holster. I have probably 2k worth of holsters over the years and have found nothing better than the Galco concealable belt holster. I have been rotating two of them over the past ten years and are very concealable and comfortable. Even on 20 hour days.