Sounds good, taking a break is healthy. Hope that goes well.
I think it’s a good reward, that’s just my opinion. I think the reward could be better though, like an all new unique set or updated tier sets from other expansions (with new challenges in the tower as well). Something new would be cool, but some of the T20 recolors look great so I am excited to get those. In the future I think a completely new set would be a good idea or update older sets like karazhan tier sets or BWL tier sets for example and use them as rewards for MT over time.