This will be LONG but for the casual buyer I hope it helps. I didn't REALLY understand the difference between RGB or Neopixel but I do now. While I DID completely understand RGB was for the "budget" shopper, honestly, I was surprised at how much they gave you anyway.
Hilt: I did know it was metal but honestly a higher quality than I expected. It's NOT a "cheap" thin feel but well, far more impressive than I expected.
Blade: we this is the unexpected but still OK part. The RGB does NOT have anything inside the blade. It's essentially a lightsaber looking flashlight that changes colors. At first I admit I was like "OH NO" but it IS bright. OK not "neopixel" bright but for the budget end: Honestly NOT BAD. Now you are NOT going to have the igniting base to tip slow movement of the light and turning off, it will not slowly return to the hilt. After all it is a flashlight with nothing inside the blade. However they include the awesome ignite sound and the awesome turning off sound to still make it very cool.
Also, the blade quality would make for LIGHT dueling, it's rather thin and would not take much Id imagine to dent it or worse. It is held in place by two micro sized screws that an (included) allen wrench is used to tighten them. They even give you extra screws which is actually very generous.
Sounds: This was MOST impressive. Many sounds to choose from for the part we desire most in the experience. Great "crackling" saber sound while you hold it still and a nice selection of saber "whooshing" sounds when you swipe it back and forth.
Effects: The blade has several choices to just "on" to almost a strobe effect. Mentioning RGB had noting in the blade tube I was VERY pleased to find they made an effect that kind of makes the blade bright-slightly dim-back to bright, to essentially try to imitate a shimmering effect.
Colors: LOTS to choose from and I think anyone will be happy with the selection.
Easy to recharge and VERY happy the batteries can be replaced (I did not try to see if this was easy to do but it says they can be replaced).
Summary: If you want more of a professional experience then go with the other two neopixel options. If you want a pretty impressive saber for the money. I have to admit, they gave us that. Pretty generous options and quality for the money. SURE I'd like it to be brighter (and my picture honestly was in a very dark room and "looks" brighter that in truth it was. Still, it's bright enough to be happy with it.
Thanks for reading! :-)