Indeed, it is narrow inside and the hand cannot fit to clean it, but it is as described, perfect.

Excellent. The only "issue" is the filling. It doesn't leak. I highly recommend it.
With a perfect 10, it definitely deserves a 9

It has a good size because it is neither too big nor too small. The flow of the oil is as I want it

Personally, I found it excellent. It holds a sufficient amount without leaking, and you can rest assured that you are storing oil in a stainless steel container instead of a plastic one with potential long-term health implications. Unfortunately, after a few months of use and without any extra strain from usage, it started leaking oil from the base where the flow arm connects to the rest of the body.

Good quality, user-friendly. The filling is not very easy because the lid does not open completely and there is also a protective cover on the spout. Over time, you get used to it and it doesn't bother you as much. The funnel fits, but not perfectly. It does not leak.

Very good with only one disadvantage that if you want to wash it, it is difficult to access the interior, otherwise it is very useful.

Very good, I have been using it for only one week, very good, it doesn't leak, good flow.

The only disadvantage is that it has a barrier inside the lid which, combined with the lid that doesn't open widely, makes it difficult to place a funnel.