Received my lifetime'd Mini from Tivo today (ordered Monday). Proceeded with the following (as I ordered from Tivo it was already activated): 1) Enabled tuner sharing on my XL4... this was a pain as that menu is only in HD and since I use SD menus I had to switch to using HD (which took a minute or two) then traverse to that screen (which detours through a SD screen... really tivo?) and set it up to share 1 tuner. 2) Hooked up the mini (wired ethernet) and plugged it in... the mini took several minutes to boot (really tivo?) and then went through the guided setup which took about 5 minutes or so to complete. I was hoping that the mini could be plugged into the switched outlets but the unexpectedly slow boot time will probably nix that. 3) Tivo Central then displayed and then I tested: - Live TV - takes a few seconds to start streaming but it worked fine... as I tend to "guide surf" the HD menus on the mini are much faster than the useless ones on the XL4 and switching channels takes a couple of seconds (5 seconds max actually but that includes the HDMI handshake required when resolution changes as I use "native" output to the video processor) but pretty much as I expected and very much what I am used to. - Streaming - again takes about max 5 seconds to start the stream... fast forward, rewind, skipping (30 second skip and to tick mark), etc. reasonably fast... not as fast as the XL4 but very usable. - Xfinity - as I live in an area with xfinity on-demand support I tested this as well... the experience is much like it is on the XL4 so I am happy with that. - Could not watch anything from the S3 or Tivo HD on the network (V120 error about the tivo being too old a model). I guess this was expected as they do not support MRS and, regardless, the plan is to replace these with minis. All in all a very positive initial experience (no reboots or anything required here during setup as others have noted) and it appears as if the mini will do what we need it to in our home theater and other second TV setup (will purchase a second mini for that). Once (if) dynamic tuner allocation comes along then I'll be even happier as I can then recover the one tuner I will allocate for the minis. Will now sell the other lifetime'd tivos we have (S3 and HD) to pay for the minis and no longer have to worry about outlet fees, cable card fees, etc. from Comcast and be able to watch anything from the XL4 tivo anywhere.