After the upgrade I noticed that battery life was reduced significantly, specially if data/3G is enabled. Found a post from XDA developers suggesting to redo the Exchange account. I removed my exchange account and amazingly battery life is back to normal.
Another point to note is the Instant upload option from Google+. This option was giving me problems in the past, keeping the phone busy and draining battery. I disabled the Instant Upload option for now, thought it is a very nice feature.