I think he is asking about versions of Air Illumina.
Cole often tosses in an extra rubber for me to try in my large orders, I buy him out of XP 2008 as I keep making bats for rec players on the cheap and always tryout whatever inexpensive blades he has, use them, then pass them on to a new player to startout with. He just appreciates and supports military and it doesn't hurt to get a new rubber "out there" in players hands. Cole doesn't run the TT shop for a living, he already has employment, he runs a shop to equip new players or those wanting custom made sponge/rubber from Chinese stuff because he really loves and wants to help the TT community that way.
Someone gave me a workable bat when I started... so what if it was an old used totally DEF blade, Joola T-Hold White spot, it was still a pro blade and I learned to loop from it as a rec player.
As much as I would should say to players to get gear that is quality and normally expensive, and yes, we as players deserve that kind of gear, often, when a player starts out, the player is totally concerned about not spending much money and getting something workable. At a price point under $50 USD for a complete bat mailed out, you cannot expect what $150 to $250 will get you, but if you are careful, you can get something to give you a decent start. Usually, after some time, players come around and realize they need "mainstream" equipment and at that point, many try this and that like a disease that is called EJ (Equipment Junkie) Such players will amass an arsenal of quality gear. There is no replacing trying it out for yourself. I do that a lot and keep gear in reserve or pass it on to other players. it is best to try stuff out when you can for free from a player at the TT table every chance you can.
I have tried maybe 3-4 versions of Illumina rubbers. The softer sponged Illumina rubbers, while different in this or that aspect, generally mate very well with vibrating looping blades like the W-6 or most ALL to ALL+ not over thick blades. Illumina is totally non-tacky and the Air sponge is different from anything out there. It shines on your looping strokes where you are applying 70% - 80% of your power with an emphasis on engaging the sponge, easy to do with softer sponged rubbers like this. Best control with this kind of impact that is not as solid hit through the ball. Players who like to loop with soft Euro rubbers will feel at home with Illumina, but the connecting shots have an entirely different feel to them and you gotta have some time to adjust.
For players who are not contenders to fight for a spot in the top 1% of amature players, they will not do worse or better using Illumina compared to a classic, like say Tibhar Rapid Soft or Sriver FX.
Like Tony says, serving with this kind of rubber is different than with a really hard topspheet / hard sponge rubber, theory and technique is different. I can do with either OK, I have more problem keeping arm and wrist loose 100% of the time than adjusting my impact. That is just me. Players like Tony who trained hardcore from the get-go with a certain gear are like what he is... geared to play well with what he had his whole TT life. Nothing replaces years or decades of hard training and experience.
