Great product. However to make your set up smoother do not follow instruction manual. It is easier to watch the link that's provided upon delivery.
It actually arrived 3 days earlier than the predicted earliest delivery day date.
The customer service team are extremely quick to respond and even called me (from Germany and Daniel spoke very good English) to assist with my set up struggle within half an hour after email conversations during this first 30 minutes.
Make sure you set up on a really level surface or it will leak at the bottom of the top tank.
The top tank is actually bpa free plastic but apparently it has to be as glass designs kept cracking under the pressure when they tried to design this. The reservoir is glass however.
The instruction manual may mention on point 6 that the threaded ring of the water cartridge hanger (I assumed this is the part it meant) has silicon rings but this is an old design and they're not included or required for the latest design.
Over all very happy with my filter and Acala's customer service team.