This is my first boiler machine and I am primarily an espresso drinker. I've had the machine for awhile so I thought I would give my review on this.
Things I like:
Fast heat up - I was concerned that the heatup time would turn me off but overall it is pretty reasonable and I have adjusted to it needing a bit of time to get up to temp. For the most part the boiler will get up to the set temp in under 90 seconds, however for everything to really warm up it takes about 5 minutes.
Aesthetic - It is boxy and maybe not as sexy as some other machines out there but overall it comes in a variety of colours and it looks great on the counter. I have black which hides a lot of the coffee mess.
Good size drip tray - Depending on how much you flush, how many coffees you make and whether you are making milk based drinks I think the tray can hold enough water so that you only really have to empty it daily.
Side load water tank - this kind of limits your options of putting it in a corner but having easy access to the tank is a big bonus. Often times I don't even remove the tank and just fill it with a pitcher.
Steam power - Very powerful steam, it will make quick work of your milk steaming.
Adjustment - the temp is adjustable which is great for those who like to experiment. The pressure lever is a nice option to use occasionally when you want to dial in the flavour profile.
Pressure gauge - with the adjustable pressure profiling lever this is something that needs to be on the machine. It is nice to have this information regardless.
Things I don't like:
Steaming milk - This seems to be the weak point with this machine, there is quite the learning curve to really get that cafe style milk. I have been able to do it after probably 20 or so tries. A few things that make this complicated, the two hole steam tip works a bit different than a single hole and you really have to experiment to get the proper wand orientation. Simple solution is to switch it out for a single hole and it will probably be more consistent. The wand is also a bit tricky to use depending on if you have the short or long version. It really needs a bit more articulation for it to be more user friendly.
On the same note I wish there was a better steam knob, my preference would be something a bit more tactile or even a lever. I find the wooden knob a bit out of place on this machine since the portafilter I received is a black handle one.
Cup clearance - if you use the spouted porta filter you will be very limited in the cup sizes you can use. I use a bottomless and it works for me but I would not mind maybe 10-20mm more space under there for more cup options.
Manufacturer service - I tried reaching out to Quickmill to ask some questions about the machine, never received an email response. I wish I knew this before since I usually like companies that engage with their customer, I guess I will just have to rely on the retailer for this.
User interface - the small little lcd screen is not very intuitive to navigate without the manual when you are in the settings menu. The buttons could have been done a bit better. I don't like the buttons having to go all the way in before it actually registers the press.
Water dispenser - I guess it would be too much to ask to have a separate spout for this. Water coming out of the steam tip is not the most efficient way to deliver hot water. Combine that with the two hole tip and the awkward nature of the wand, it is kind of a bad combo. I rarely use this function but would probably use it more if it had a better way to dispense.
Overall I am happy with the machine and hope to have many years of good coffee with it. I appreciate all the features jammed into this unit even with the shortcomings I have identified, I would probably still buy this again if I was shopping for a single boiler. I think the only thing that sold me on this was the pressure profiling lever which I actually don't use often but it was something I wanted to have.