Personally, I find its a very cool game, neat design and some really good points.
Pro:
-Freedom to design own virus with own stats
-Different types of cells (+spe, +def, +rep etc)
-Colour change possibility ^^
Con:
-The upgrades are a little boring, basically just bigger +/- using more points but always the 5 same stats. I would like to see some variance here, also pure +stat blocks or different/more colours.