111a111sk wrote:In most countries GS3 costs 20% more. So for exactly the same price, I'd probably go with GS3, IF it is the latest IoT version.
After using E1 Prima for a while, there are couple things I think the E1P is better. Water dispensing from the screen is fantastic, the requirement of portafilter preparation skill is way less than GS3. You need to grind and tamp properly in order to pull a shot with minimal channeling with GS3. Versus E1P the water dispensing has done a lot of job for you, I'm pretty sure my tamping skill is just as lousy as always, but all the pucks came out from E1P looks the same, preinfusion to minimize channeling is not necessary.
Secondly, volumetric feature is really convenient, especially when it pair up with E65S GbW grinder. The grinder allows you to set recipes, parameters included target dispensing coffee grinds weight, and most importantly - burr distance. So how do I work with these two machines together? For instance, my RECIPES 1 on E65S is dispensing 19.1 gram of coffee with a targeted burr distance, then I set E1P button ONE a targeted dosing of 60ml of water. This combination gives me 36ml of coffee in 25 seconds, close to 1:2 ratios, I would use it for milk based drink or cold drink. Then with the same grinder I have set RECIPES 2 to dispense 18.1 gram of coffee with different burr distance, I use this grind settings to use on my E1P button THREE to make coffee, with dosing of 77ml of water. This will give me total 53ml of coffee in 30 seconds, around 1:3 ratios, I would use it for espresso drinking or milk drink with less intensity. I can make coffee of different ratios with same grinder and espresso machine conveniently without need to switch grind size back and forth.
The steam of E1P is very good, dry and powerful. It's not La Marzocco type powerful, La Marzocco is like an engine with a lot horsepower, pushing a lot of steam out. On the other hand, E1P isn't like that, but 2.1 bar of steam power still capable to steam your milk in a short time. Key difference, the way it deliver steam would help to texture your milk easier. Even if you started with wrong position, causing a lot of bubbles, it could still help you to swirl it back to smooth texture towards the end.