I'm no expert, but I find it to be quite silly.
It seems nothing more than a rehash of certain Protestant ideology, combined with speculative/revisionist history, and a bunch of nifty "Judaic" jargon terms and accoutrement.
People frequently make stuff up as they go along, but to me, the arrogance related to their "creative license" is over-the-top.
It's one thing for a [insert Evangelical denomination or non-denom] to say: "Well, I read the Bible, and this is what the passage means [to me]" It's quite another to say: "Well, I read the Bible, and this is how services should be performed and all of the early followers [Gospel writers, disciples of Christ] were wrong, but we're right. We've rediscovered [by making it up], nearly 2,000 years later, what the faith should've been"
Some of the assumptions associated with Messianic Judaism, e.g. the importance of exclusively using the 10-12 Hebrew words they know, are laughable.
I find it difficult to understand how otherwise intelligent people could fall for this. I do understand the desire to return to a form of the faith that is older than the PowerPoint/praise music dross that's out there, but there are better options. Additionally, there is a pretty healthy little industry created for similar types of Judaizing. Perhaps this helps them on their journey.
Ortho_Cat, opinions from both sides?