I was back and forth on the decision between this XM and the Sideshow one as well but when I finally chose to go with this one, it became crystal clear for the following reasons:
1) The price is lower
2) Less shelf space needed
3) The switch outs are much more AWESOME! The Amazon helmet is fantastic.
Sideshow's Switchout Skirt is NOT need-to-have
4) XM Studios has historically had better Quality Assurance from Proto to Production
which goes HAND in HAND with
5) The Edition Size is sure to be WAY less than Sideshow's Enormous 7500 Edition Size
6) Spec Fiction Shop was really helpful, nice and accommodating with a good payment plan
7) From the sculpt render alone, I knew that this might go down in the TOP 3 Most Well-executed Wonder Woman Statues of all time and there's no way I'm not getting in on it.
All in all, I'll most likely still be getting the Sideshow Wonder Woman down the road as there was a lot of hard work and thought put behind it, particularly the beautiful portrait but I'd still like to wait for Production photos/reviews. Plus, I'd be willing to bet it'll stick around for purchase for a while and by that point, I'll have my fair share of Rewards points to cash in. Anyway, congrats on anyone who decided to support this statue. I'm sure everyone will be pleased when it's out next summer.