I own all Core, all Beginner Boxes and all sourcebooks + all the different cards, six sets of dices, Edge of the Empire, Age of Rebellion, Force and Destiny. I got it all but the adventures and all the pre-made characters you can buy on the side. What annoyes me most with the entire series that FFG has released is that each sourcebook promises new species, sure they are new when you own one of the games, but imho, for the future, if the species has already been added in a sourcebook, as in already in excistance within another sourcebook please add a fourth species not already used in any of the other releases. I've liked most of the material released within all sourcebooks this far, but Strongholds of Resistance being the one on the short end of the rope. This is why - The species are Verpine was the only species not already used somewhere else and that one was a good one, Quarren sure great species as well but already used twice. The Polis Massan to this date most useless species ever added to a sourcebook imho. If you want strongholds of Resistance you should 1) Make sure that the species do resist, 2) the species can talk without being an exception and 3) make sure it can work within a PC group without being special. If you ask me, while at it if using the "new" movies Fantom Menance, Attack of the Clones, Revenge of the Sith, for species please, have a look at species such as Tof, Nagai, Zeltrons, there are species fit for a Stronghold of Resistance sourcebook if you ask me. Most locations could be found within West End Games products for decades now. This game is great, no quesiton about it, this is constructive criticism. Me spending over 768+ EUR on FFG Star Wars books is proof of good products overall. Kind Regards: Eigel