Well.... it's wildly comfortable. The steel caseback makes it sit close to the wrist (and just over .1mm thinner than the regular heritage if that matters to you). It also has a nicely domed crystal; it's just
not as tall as the on-paper measurement suggests. it's snug and tight to the wrist in such a great way.
the dial: while the SMP summer blue dial shows much of its color ability on a regular basis because of the flashier ceramic dial (which isn't bad) the varnished fumé dial here will make more subtle changes, but it can be dramatically different throughout the same say depending upon sunlight angles, cloud cover, how gray or overcast it is- the craziest dial effects are when it throws off emerald, ruby, and sapphire sparkles (which are essentially impossible to photograph) in shaded full sun. This dial is both dramatic and subtle at turns; like all of the summer blue series this is probably its greatest strength and greatest weakness. If you want a watch that consistently looks the same at any angle in any lighting condition, it is
not for you. On most days this watch will not be the same in the morning, afternoon, and evening, and will vary appearance in different indoor lighting (a trait it shares with the SMP in some ways).
Timekeeping is exceptional, what you'd expect from Omega's METAS. Mine was 12 seconds fast this morning running constantly since February without being adjusted
.
I've owned this for a year, and it is by far my most worn watch. I'm currently wearing a speedy on an Apollo flatlink (which I love) but I think the heritage flatlink is more comfortable.
I doubt I'll ever part with it.