AMS is easier to use, its reliable, but you get a few cough ups (especially piciking up filament), you get relatively lot of waste

MMU is more clumsy in terms of use, its super reliable, you get relatively little of waste (if I remember correctly, MMU should be also faster, but take it with lot of grains of salt :-) )

So in the end, in terms of user experience it is more about if you are more DIY person or you want most friendly product out of the box. IMHO :-)

I personally now am working on MMU without buffer. Still, I will have to manually feed MMU. AMS is really more user friendly in this.

https://www.prusa3d.com/product/original-prusa-mk4s-3d-printer-5/?p2p=%40iftibashir_468393

Back to topic though - I'm currently working on a video build guide for the MK4s, but the more I look at the A1, and the price of the A1 Combo - I'm tempted to get that just to use for multicolor prints. The AMS lite seems to be a lot more refined then then MMU......

But! I am one of those people, who tries to decide what to buy based on origin of goods. Also I saw brief history of BL and also history of Prusa and that was what made my final decision for MK4 Kit.  Simply Prusa company while a little behind is very sympathic and has more transparent ownership of good community people.

Its just feeling, that this is company I want to support, not some chinese super business one. Its same reason I would never buy anything from Temu or Shein or similar ones. Of course we all have something from China. But it isnt reason to buy everything from them. Just because everything is cheaper from China.

In the end I very enjoyed whole construction process of my new MK4. Now I know my 3D printer to last screw.

But with respect to everyone I understand if someone decides other way.

Posted by: @scottm-2

I too am looking at Bambu Lab P1S-AMS vs the MK4. I currently have the MK3S. My son bought the Bambu on a Black Friday deal and loves it. I'm a Prusa guy, but I've had so many PLA prints that start out great, print several layers and then let go. I check hours later and I have a huge blob of PLA engulfing the printhead. I'll post a separate question about what non-Prusament filament people are using. I'm in Canada, so it's too expensive to buy Prusa filament.

I am using a lot of Jessie filament from Printed Solid (now owned by Prusa). Ships from USA but might be an option for Canada?

I went through the same soul searching journey for a couple of months. I finally placed an order for the MK4 kit, only to cancel the order a few weeks later. More going back and forth, and I ordered it again. I might even have cancelled it again, but they finally shipped it to me. I enjoyed building it. It was much easier to build than the MK3S I built a few years ago. And I'm so happy with my MK4. It's a big improvement over the MK3S (which I was able to sell). Not that the MK3S wasn't a good printer. It was. But I really appreciate all of the improvements they made with the MK4. At this point I have zero second thoughts that I made the right decision.

Yeah, I've had the MK4 now for a few weeks, and I'm incredibly pleased.  I'll be honest, I do miss the ability to do colors, but once the MMU3 for the MK4 is released I'll jump on that. I don't do a lot of colored prints, but its nice to have when the need arises.

there are differences in how the machine behaves compared to the A1 that I had previously. Its quicker to start the actual printing, but obviously a bit slower. The quality is fine, I have no complaints. While the A1 looks more polished because everything is under plastic, I think for long term maintenance this could be a hindrance.  I seem to have easy access to everything that is needs to be maintaned.  I also feel the printer is solid as a tank