For what it's worth, I like the CLR Stainless Steel Cleaner/Polish (fairly new product) for my expensive kitchen appliances (Wolf and Sub-Zero - not to brag (ok, maybe a little) - but I am humbled by how awesome they are - and bow down to them and thank the appliance gods every day). I've tried a few stainless steel cleaners/polishes, and the CLR seems to actually CLEAN (as long as it's your average drips/grease) AND polish (not JUST polish like others). Used regularly, you can avoid a separate cleaning task. And it doesn't streak like others. Easy, non-messy aerosol can. I've used Weimann's, and it is very streaky, and doesn't "clean". Chucked it out. Spray CLR on, and keep working/buffing til dry. Repeat over problem areas. There are probably some good commercial cleaners out there, but this is my experience with grocery store brands.
I used CLR to polish the exterior of my SI even before it's first seasoning. My SI is still pretty new, so I haven't had to do a serious cleaning on the exterior, but hope to keep up with it as I go. Oh, and maybe someday when I get brave, and am willing to deal with the consequences, remove that sticker!