Hello,

I am a long time lurker here, and this is the first time I joined to make a post here. So here goes

Assume you wanted to create a site (shop, market, w/e) that were to use multisig transactions between peers to ensure optimum safety. (Alice, Bob, Shop cannot scam each other or run with the money)

What are the drawbacks on this, excluding user friendliness? I understand the question is quite broad, so there is no need to be exact to the detail on the answers here, but I just want to know, in general, what other problems would one face while solving the whole trust issue  with multisig addresses. (For example, it depends more on txid, would transac malleability problem hurt things etc.)

Appreciate any input.

Thanks