The issue I have, once again with strict timing and spacing, is that this sort of thing won't be much help at all in Online play. I ended up having to use cheap tactics and throw combos just to win a round or two.
Not saying that lag is guaranteed, in fact I hear it's much better than CT was, but it's still a possible issue that could be simplified if much more simpler combos were used. I had a similar problem with the challenges in Super Street Fighter IV. Sure they're good combos, sure they do good damage, but are they practical?
Several factors I consider when adopting a new combo:
1.How hard is it to learn/memorize physically?
2.What situations can I set up for it to be used?
3.What can I do if by some chance I accidentally "drop" it (flubbed combos)? Even the best of us drop combos we normally could do with ease.
4.What variations can I use in case it gets blocked or only partially hits?
And the list goes on. The point is, if those factors don't help me much, or give me versatility, I tend to not want to use said combo.