I liked issue #5 but I was also pretty drunk when I read it so actually it made it sort of interactive, really. this series, like a lot of one shots, is sort of ups and down, issue #4 I thought was the lamest but I totally loved the infamous issue #3 cuz I thought the nurse was both sympathetic and a complete freakin' nutter which was a pretty complex issue, probably more complex than any of the other issues here. #2 with flying through the space slug was dope and #1 had the Evil Horse Riding Vader which had some cool imagery. Anyway, this is definitely a step down from the first 2 Darth Vader volumes and coming of freakin' Darth Vader #25 Vol 2 which straight up manhandled it's way into one of my favourite Star Wars comics ever it couldn't quite measure up. But there's cool stuff in here.
I agree with everything you posted, not the best series, and certainly no match for either of its Darth Vader comic predecessors, but had some good moments.