I've upgraded my home iMac, the WC MacMini, and my work MacBook Pro now to Mavericks and I would recommend the upgrade.
A few minor issues with Safari and Mail Plug-in's not yet being Mavericks compatible but other than that all is working fine. A few points why I like it;
- So far it has been fully stable and FAST! Hate the term but imho it is 'snappier' than ML.
- I like the cleaner interface (e.g. no more silly stitched leather things on iCal)
- Finder improvements (Tabs)
- Better multi-display support
- Truly improved battery life on the MBP
- I want to stay up to date with the latest technology and it is a FREE upgrade
A bit early to tell, but my impression is that with Mavericks Apple is focusing again on better technology and less on 'trendy looks'.
![Rock On [rockon]](https://athena.trixology.com/Smileys/default/rockon.gif)
If you are the cautious type you may want to wait for 10.9.1. I've heard about some Mail.app issues but haven't been impacted myself.
Jos