Essential Props Missing
While I will commend AoSW for bringing in about half of the essential stuff (e.g. Darth Vader, "Imperial" Star Destroyer, Mon Calamari Cruiser, Lightsabers, etc.), BUT a lot of essential props are simply missing.
So what was missing? Let's see...
1) No Anakin Skywalker / Obi-Wan Kenobi costumes (the 2 most important guys in PT!).
2) No Han Solo / Princess Leia / Luke Skywalker costumes (the 3 most important characters in OT!)
3) No Yoda (ok, this is my personal preference... I wanted to see YODA!!!)
4) No Executor aka "Super" Star Destroyer (how can you not have Vader's flagship?)
5) No Death Star (how can you not have the iconic power of the Empire's might?)
6) No AT-AT (how can you not have the iconic ground unit in all of Star Wars?)
7) Not much vehicles/ships from PT era, missing models include Venators, Accamators, Jedi Fighters (both variants from AOTC and ROTS). Fine, there were *small* models, but those were hardly noticeable and most were not even coloured.
8 ) Lack of big models. Except the "Imperial" Star Destroyer and Mon Calamari Cruiser... nothing.
Technical Errors
Spotted several technical errors, which I think is really very un-professional. Turns off a real Star Wars fan like me.
I spotted a few display errors (probably mismatched props to their labelling)...
1) There was this drawing of the Old Republic Juggernaut Vehicle (the four-wheeled vehicle you see in ROTS in the Battle of Kayshhk). Unfortunately, it's label was talking about the AT-AT.
2) There was a description for the Separatist Trifighter Droid (I think it was one of the space droids we see in ROTS), unfortunately, the model on display was that of a Separatist Supply Droid.
And a few technical terms were wrong too...
3) The "Imperial Star Destroyer" you see at the entrance. For the last time, the correct terminology is Imperator-class Star Destroyer not "Imperial Star Destroyer". Thanks to exhibitions like these, the fallacy of "Imperial Star Destroyer" will continue for years to come!
4) The "Mon-Calamari Transport" you see on display. Actually, the correct term is a Mon Calamari CRUISER. Since when did the Rebel Alliance's most important and powerful warship turn into a measly transport? Yes, it was originally used as luxury liners before the war, but since then it has been converted to a Military CRUISER.
TWO Trivia Questions were distinctively wrong too...
5) One question asked which TIE model had 3 solar panels. Options were TIE Fighter, TIE Interceptor, TIE Bomber and TIE Defender. The "correct" answer according to the trivia game is TIE Fighter. Ok since when did the TIE Fighter has 3 solar panels? Just look at a pic on the TIE Fighter on display:

(For the record, I chose TIE Defender, which should be correct considering the options. Technically, the TIE Defender has 6 solar panels, but it has 3 "points" branching off it's cockpit, which is the closest reasoning I came up with).
6) Another trivia question showed a scene of Darth Vader getting ready to speak to Palpatine in TESB. The video clearly showed the Executor moving out of the asteroid field. The question asked was, on which ship did Darth Vader made the communication to Palpatine. Options were Imperial Star Destroyer, Star Battlecruiser (something like that) and 2 other options which we wrong. The "correct" answer according to the trivia game is the Imperial Star Destroyer which is absolutely wrong! (For the record I chose Star Battlecruiser, because it's description was the closest that fitted Vader's flagship).
And, the biggest mistake ever... A model of the "Death Star" on display.
Please refer to the picture below. Does that "hairless rambutan" look alike even remind you of the Death Star? I've seen Star Wars so many times, I can safely say that is NOT the Death Star. It does not have spontaneous "growths" on the surface, and even the superlaser is missing!


Now, this is a real pic of the Death Star as reference:

Well, apart from the errors here and there (some of which were very obvious and irritating), the exhibition was generally OK. Nothing outstanding I would say... very sadly. But worth $18? Maybe.