Aeon MQ skins are among the best Kodi skins and are known for their looks and customizability. The level of customization can be set based on hardware capabilities. While initial releases were quite hardware intensive, recent releases have been lightened a little bit without feature loss to fit compact and low power Kodi boxes. I would still not recommend running Aeon MQ on an Android TV Box or Raspberry Pi 1. But it can be a great skin for Kodi on a HTPC (especially in a living room / entertainment room).
Aeon MQ 5 is available in the official Kodi repository which is included by default in Kodi. If you have a decently powerful HTPC then install and try Aeon MQ5. Its advanced customization options are probably unmatched.