Iv been holding off the upgrade on my rmbp late 2013. Its running reliable on 10.9.2 and don't really want to disrupt that. Do you think i should i upgrade is 10.9.3 stable
Working fine for me... Do a TM backup and go for it. If it doesn't work out, just restore and you're back where you started.
10.9.3 feels snappier than 10.9.2. No issues here. It also comes with security updates.
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If you restore from a TM backup after updating to 10.9.3 are you sure it'd go back to 10.9.2?