I'm not 100% certain but that suit may have been discontinued. I think they only make NXG super+ now. Someone please correct me if I am wrong.
I think if you are starting out in PL that suit might not be the way to go. I have trouble getting depth with 550+ in the centurian and it isn't especially tight. Personally though I've become really frustrated with this suit so you are getting a pretty biased opinion.
If you want to get a suit you might look into the titan superior- same material as a centurian, but lighter- goes about $60. The Inzer champion suit and z-suit also are easy to learn and economical at 40-50$.