It is a superb caravan and not as heavy as the report suggests when you look at the payload allowance. I cannot see many couples using the full amount and so an actual weight when towing is probably going to be below 1450 kg.
The storage looks adequate for two and given the size of the body the Truma should be more than adequate so the Alde might just make the caravan heavier with very little advantage. I do not like microwaves over the hob as this is potentially dangerous.
As for the price you get what you pay for, not sure it is the Rolls Royce of caravans, but it is well on the way to that, but needs a bit more care in the standard of finish..
If you add in the ALDE heating then it makes the caravan very expensive. The other thing is that the payload is then no different to British caravans if adding the ALDE heating. Granted it is a well made caravan there is no denying that, but one strange thing we noticed that the blinds did not come to the past the bottom of the windows which will then let in a lot of light in the mornings when you want to lie in. When I tried the front skyscape blind it jumped out of its runners. The 2017 caravan we looked at never even had an aerial although there was wiring in for the aerial system? To bring it to the equivalent of a top British caravan placed the Knaus TA caravan at about £34K.