I have MM and like it quite a bit. I haven't switched over to iCloud yet. What's the broken leg part, compared to MM?
Sure, I'll explain my statement. I too (like you) have not made the move to iCloud, and won't until next June when my Family Pack MM expires. Reasons are the following:
1. I use iDisk, and a lot. I have 20GB included in my family plan by default, and it's paid for already. (iCloud has Documents *that are NOTHING at all useful unless you write on your iPad/iPhone),
. Also, they do not sync to iWork for Mac OSX either. Now granted, iDisk did not perform like Dropbox, but it was safe and secure-albeit slow; I have never lost anything on it. YOU CANNOT STORE ANYTHING ON ICLOUD EXCEPT IWORK DOCUMENTS (written mind you, on iOS devices). That's a fracture.
2. Gallery is Gone.. bye bye. I use it, a lot. Love it. I don't use FB, flicker, twitter to share my personal pictures for all to see; I still like my private life. On Gallery, I could upload a photo taken on my camera roll, and upload to MM gallery folder (of my choosing) that is only shared with family contacts. That is gone BTW in iOS5. iOS5 does not have an upload option any longer to send it up anywhere (please correct me if I am missing something here) That's a fracture.
3. Syncing system prefs, and signatures/rules was used at my office to keep all Macs in sync. That's gone. That's a bruise.
4. Apple ID's and iTunes/App store accounts. Friken mess.
Simply put, I have had (for years now committed to the apple ecosystem) 3 users (1 apple @mac account for each tied to iTunes/Appstore/MM/etc.) for me, my son and my wife. All of us sync/buy/and DL to our own personal machines, and all info is stored in the central iMac at the house (each account is separate obviously, but we login to grab updates and purchases every now and then). Enter iClould, throw that all out the window, because you MUST create (or upgrade) your existing MM account in order to use it. No merging later, no way to keep what you have in sync to Lion and SL devices in tandem (we mix and match OS's currently). Existing MM users either commit to iCloud in it's current form by upgrading, or start anew and repurchase everything they already own due to the lack of merging support (accounts)
So what I did on my new 4S is just created an iCloud account only for backups, period. I have everything on the iCloud settings off except mail, I think I have to have mail on to keep it working (not sure honestly.) I figure I will go forward next year after Apple realizes that others really liked MM functions and features. (I hope anyway)
Even though my family is using Lion on a couple of machines, I won't be upgrading the accounts to iCloud until I can get my head around how this will play out.
In short summary, iCloud IMO is just a rebranded dumbed down MM, with a couple of extra new features that could have easily been implemented with the existing MM platform. Maybe apple just hated the term MM, IDK.
