I have a Rocket Appartamento since April 2018. I am delighted. Extraction quality, powerful steam, heated in 20 minutes (I then pass a little hot water in the filter holder, ...). I do not miss the PID because I think the original setting is fine. In addition, I do not appreciate the roasting clear (besides my feeling is that the group E61 is not made for these roasting, although obviously it is not prohibited). However, I always make sure that the cup is hot before pouring coffee. Sometimes I play a little preinfusion, but the lever is certainly not planned for that. In short, not too much electronics and I think that for a machine with heat exchanger, E61, it is more than enough. Some people may need a double boiler, perhaps, or a rotary pump (although the Appartamento is not very noisy for a vibrating pump). If I had to put money in a more sophisticated machine (and obviously the mill, I just ordered the Niche), it would not be in a group E61. What I mean is that for an E61, the Appartamento is Top. And that soon I will come perhaps to put next to the Appartamento another machine (group Rossi or machine with lever, or LMLM but there it becomes expensive ...) to discover other sides of the coffee.