Thanks all for the replies. Let me see if I can respond:
JohnB. wrote:You have a 30 day "Buyers Remorse" period so use the Vetrano & see how much you like it. I came down to the same two machines 3 years ago & ended up ordering the Vetrano also. After 10 days of use I decided I made the wrong choice (for me), loaded it into my car, drove up to Albany & brought home the S1V2. I never regretted that decision & would still have the Vivaldi if a good deal on a Speedster had not come up.
The S1 steam boiler is easy to remove/ insulate & once you remove the covers you would see that it is not all that complicated & service/repairs are not difficult. You can make up a better drain kit from standard plumbing parts very cheaply, I've never heard anyone complain about their frame rusting, you are better off with the standard steam arm, changing temp & volume is very quick & easy. Go to the S1 Cafe, download the excellent Owners Manual & read through the various programming procedures. I ran a dedicated 20A line for mine but lots of owners run their Vivaldis on a 15A circuit & are quite happy with the performance.
That "Buyers Remorse" program is a great option - good to know. Glad to hear that the S1 is easier to work on than I assumed. I will read through the owner's manual. Thanks for the input.
Bob_McBob wrote:Your pros and cons lists would be a lot shorter and more meaningful if you removed the features that both machines have.
Yeah, good point.
cafeIKE wrote:Don't buy either machine. Neither makes really dry pucks.
April Fool is still a long way off 
What I should have said was that I want to be able to knock out a puck with one quick knock. The spring clip lock mechanism that locks the filter basket into the portafilter will have more impact on that than just a dry puck. Neither of my current machines have said mechanism so I have to pull the filter basket out of the portafilter and then knock that. It has not worked very well for me.
peter wrote:I can't speak to Vetrano. The Vivaldi is the first real espresso machine I've owned, and after 5 months with it, we've become good friends. My German friends call her Schotzie.
John covered it well. Changing pre-infusion times, brew temps, shot volumes, are all a snap. I just bought some Kaowool to insulate the SB, but most of the time I have the SB off; when I know a milk drink is coming up the boiler only needs 10min. or so to come up to temp. For my purposes, a timer is not needed. When I get up I turn it on, and by the time I'm dressed and whatever it's ready to go.
You can run it on 15amp, and for all intents and purposes you wouldn't know it wasn't set to 20. Also, I've never seen the need for a no-burn steam wand, but would suggest you consider the 9mm tip.
Recently, my machine had an issue with what I believe was a defect in manufacturing that took this long to act up. Tim and Jason at Chris' were both great in walking me through the repair. There isn't that much to working on these things if you're handy and can turn a wrench.
One of the things that your list didn't mention is what steps are needed in either machine for descaling, i.e., how easy is it to get at the heating elements, drain the boiler etc.
I will look at the owner's manual - then I will have a better idea of how easy operating the S1 is. Does the manual provide info on routine maintenance?
sweaner wrote:The bottom line is that the Vetrano is a great HX machine and the Vivaldi is a great DB machine. I enjoy using my Vetrano, but luckily I bought it on eBay without knowing much about all of these machines, O/W I would have been paralyzed as well!
Yeah - this paralysis is no fun!
coffee_no_sugar wrote:Todd,
All your details seem so mechanical. Did taste ever enter in to your analysis?
Coming from a lever background, you might prefer another group to an E61. It's
too bad that the espresso gear market is so small that we have to order our
gear from across the continent. This is not a snub on CCS; they do a fine job.
Coffee_no_sugar
I made the assumption that either machine would be capable of producing espresso I would enjoy. What I didn't say was that my taste palate and descriptors are underdeveloped. I have lots of room to grow there. I also made the assumption that the shots produced by my La Pavoni would be different from what ever semi-auto machine I bought. I have read that lever machines can be better with nuanced flavors from single origins coffees - which I would like to explore. Regarding going cross country to buy a machine: I agree - it is too bad. However, I did venture up to Seattle to test some of these machines and had a less than stellar experience. I was disappointed with the demos and what I perceived as bias to a machine I was not interested in.
So, it looks like the S1 is a little easier to use than I once thought. I will read through its owner's manual to continue the learning.
Stay tuned and thanks again.
Todd
LMWDP # 307