Ensoniq SQ-80 Eprom 1.80 (hidden waves): Worth it?

I am planning on upgrading my eproms to 1.80. I have seen a lot of buzz about the “hidden waves” but it seems that many people also seem to be suggesting the extra waves are mostly useless. Any thoughts? Also, should I upgrade my kpc eprom to 1.50 at the same time as moving to 1.80?

+ Paul