lucky.lifeThat's normally depending on your switches and your typing style/quirks; There's other factors involved too.
This keycap set uses standard OEM profile, comfortable overall, something you may already be using. If you're keen on comfort, you may want to look into other sculpted keycap profiles.
lucky.lifeYou're welcome. Not sure how much info you know about keycap profiles or mech keyboards overall but the best starting point with comfort is the switch itself followed by keycap profile in terms of purchase.
You may know this already but will say it for your reference. Take a look at Topre/Topre clone switches or Electro Capacitive switches overall, they're deemed very comfortable by a lot of users, myself too. Just bare in mind actual Topre switches are not cheap but their construction quality are top notch, clone counterparts are a nice starting point for price. Alternatives are MX switches, Cherry Blues or Cherry Browns as a starting point.
There are also ergonomic keyboards like Ergodox and many alike if you're serious about comfort.
You may have seen this chart already but have a look at the keycap Profiles if you haven't. Profile comfort will vary from each person.
http://i.imgur.com/kFxqOm8.jpg
Hope this helps you in your findings.