Hardly. Many of the upped cards lose much of their remarkable power when unupped (Crawler, the Recluses, the Frog, the Angel, and the Charger come to mind). Also, the cards cost more; although this many not seem like much, it's actually noticeably much slower. Additionally, you NEED Supernovas for this deck to work, and the difference between Quantum Pillars and Towers is large.
All in all, this is strictly an upped deck. You could probably make a decent mediocre unupped variant, but I'd stick with an unupped Shrieker or Life rush.