What they got right: I can't say I can figure out how the whole "parallel worlds" thing works, or why it was needed at any point, but that's been true for many of the comic stories, and this one at least makes some sense to me. Gus is a decent companion, but I think he would be a lot smarter given his military background than to give up their location when spying on the Ice Warriors' operations. Still, it will be interesting to see what he adds to the ship. The best part, however, is Steve bringing back the Monk (now going by "Time Meddler", the name of the episode that introduced him). On the show, it was usually Doctor vs. Master or the Rani or a few other Time Lords that would never be back. Having the first "Renegade" Time Lord the Doctor ever faced show up again is a good thing. Steve even remembered that the Monk's TARDIS should also be trapped in Police Box form.
What they got wrong: Outside of Gus's stupid move mentioned above, the art is still a little too detailed at time, but at least he gets the look of the Ice Warriors down rather well.
Recommendation: Parkhouse continues to write my favorite Who comic stories this side of Tony Lee. Fifth Doctor fans should be picking this up.