Question about battery for my Falcon

[pentago]

Hey guys, just found this discount code for NP 85L500 & NP 85R500 batteries for Falcon & Commodores.
Anyone could share experiences about these, should i take the deal?

Thanks

EDIT:
I did (well i had too) take the deal. Here it is if someone else wants it.
everybattery.com.au/promo/july/