Over all it was pretty good; although I felt it could be tightened up. Grant's Sulu is a bit too much parody. There were too many briefing room meetings. Kirk was more decisive than that. The effects were excellent and "Kirk" looked the part. McCoy didn't feel right. There wasn't enough passion. This was never an original episode I'd have thought worth revisiting but it worked out. Proposing the spacewalk, Sulu had a moment of technobable that was very un-TOS.