James77 Depends on where you are. If you are at the end of Atlantis, don't buy it, if you are at the beginning, might consider. Being a premium, it will likely stay in your camp in greece but surely degrade in value. The cheapest event equipment in greece is 249 regen and 2490 storage per slot (ice clown values) and costliest is 266 regen and 2660 storage. So if you don't have many weaker equipments, you might as well end up replacing this premium one when you enter greece.
My personal opinion is to not buy it being a freemium player, I would rather spend the gems enjoying some stories. If you haven't maxed out the energy and experience boosters, can buy that.