Oh I am not wise, just try to be helpful. Regarding my recommendation, without knowing your menu, and your expected usage, and your skill level it is very hard to say go with brand X but not brand Y. You need to know the features you need, and gadgets you can do without. For example if you are going to have bladder busting big bucket lattes, you need a tall cup machine. If on the other hand you are a strictly ceramic cup shop with elegant decor, then you might want to consider a beautiful Faema E61. Or if you are of the temperature stabilization espresso techno-nerd, then you need a PID machine. How about your expected traffic volume? La Spaziale EK has a 10 liter boiler. Is that the right size for you? What about steam control? I hate lever type, especially Nuova Simonelli's full on or full off only type, so as much as I like Aurelia's other features, I won't get it. What is your thought on heat exchange vs. double boilers machine? Is pre-infusion an important issue for you? Have you thought about design ergonomics such as angled portafilter handle? Last but not least, is after sale service important for you? If you are a tinkerer, then an easy open design is nice to have, otherwise what's the point?
My recommendation is you should pull shots from as many different machines as possible. Try them at distributors’ showroom, try them at your local coffeehouses, and try them at trade shows.
Finally, while you are researching espresso machine, and presumably other equipment, the lease you are going to negotiate, the designing of your place, the roaster you are going to use and the amount of money you are going to need, have you settled on your menu already?