Goddamn I have missed this series. I was in high school when Prime 3 released, and I'm 35 now.
I love how despite the nearly 20 year gap, they seem to have jumped right back in without missing a beat; from what we've seen so far they seem to have absolutely nailed the look, sound, and feel of the series.
I suspect Prime Remastered was invaluable in bringing them back up to speed and served as a great "practise run" for Prime 4.