This card is practically a must-have in any Arissana deck. The economy potential from this card is extremely high - six credits for one click is already two more than Sure Gamble, and the only issue has been getting those credits off in a reliable and efficient manner. Arissana answers that question with her signature card: Urban Art Vernissage. If you're building a deck around her and her vernissage, you're already going to be uninstalling and reinstalling programs - sometimes multiple times per turn, and often clicklessly with her ID ability. Environmental Testing allows you to turn something that you're already doing into free money, and a lot of it, making you a profit practically every step of the way. Slot three of these into every Arissana deck you make - you won't regret it.
TT_TT
— valerian32