I purchased from here
https://www.forestrytools.com.au/index.php?id=336
And the service was excellent with delivery within a couple of days.
The quality of the item is very good it feels well made with very few moving parts to break. The water flow from the nozzle seemed heavier than my last one but possibly softer? I could only do a quick test as it is a future present. This model does not have a flow control it is either on or off but the lever trigger mechanism is a Joy to use and very well made. Taking this into account It may be hard to water only the roots on the smaller bonsai if you so wish.
I believe all parts are replaceable and interchangeable so different nozzles and extensions can be interchanged or replaced. This might help with the smaller trees? I bought the short handled one as I thought it would be handier for me.
I will let you know how it holds up with extensive use.
A good watering can will have to wait
