Was looking for a FetchTV and ended up paying $350 at HN 3 weeks ago, then this came up … I'd say it's a good deal for now. The other one was JBHiFi for a refurbished unit, but when I went into the store and asked the staff member mentioned refurbished would mean units that were faulty but repaired and repackaged, and even the site incorrectly states 12 months warranty, as it would be 3 months. So for the sake of an extra $50 buck i think this is worth it, since it's brand new and has a 2 year manufacturers warranty (stated on my invoice from HN).
Good luck!
FYI, you only get Optus Sports if you get the box from Optus.