I have been cautious not to upgrade to newer firmware (10e & now 10g) as I've been hearing one or two complaints, while my original (10b) is working just fine.
However, 2 days ago, it suddenly shut down and couldn't be powered up until I removed the battery then I re-started. Since then no issue. So, no hurry to update to 10g.
In this context, iOS is the best, once Apple received complaint about buggy new release, they will release a newer version pretty soon. Not sure it's fair to compare iOS and Android releases vis-a-vis handset firmware update. For my Samsung S3 experience, they ignored the complaints and the users have to live with it through out the device lifespan. Similarly for Note2 last Android upgrade.
Hopefully LG care more.