Original Honda float needles and seats will outlast any aftermarket part. Aftermarket might work, might not. Honda parts work the first time. Some things are suitable for aftermarket sources, but since I don't like working on carbs in the first place (too many variables) I tend to eliminate as many variables as possible. I've used aftermarket float needles in the past and was pulling the carbs back out a week later.
Honda parts may be more expensive, but peace of mind is priceless. I have used Parts-n-more for some parts, just not carb parts.