Harm.... I mean... hrmmm...
You don't sound to rusty in the least.
Now that lower background synth does. Tis for sure. I don't know how I feel about it, but I think it suites the song well enough.
I really like the synth choice you used for this. It definitely flows well together. Sounds almost like a half-life sound track in my opinion.
The drums were freaking awesome, I just wish they stood out a little more, to get a bit more presence from them. Course, I'm a drum freak... so. Haha. I think they worked awesomely. I especially loved all the hi-hat work you did. The dynamic changes and such sound great.
So, no, failure is not showing. New style? Maybe...