I have the short wheelbase Proace, (comfort trim). Payload is 1,100kg I have a 700 litre pure2o (ionics) system.
I’ve had it nearly 5 years now, it’s been a fantastic van. Service interval is only every 2 years, never had any problems (of any sort) with it, other than normal wear and tear. Eg brake pads, and I replaced the clutch 2 months ago (£515)
I chose Toyota (rather than Peugeot or Citroen) because it had a 5-year warranty, instead of 3 year.
Also, Toyota sent me a letter saying that as long as I continue to get it serviced at Toyota on schedule, they’ll increase the warranty to a maximum of 10 years. They’re doing that with all of their vehicles now.
It has a 1.6 litre turbo Diesel engine, perfectly adequate for our use, doesn’t struggle even with a full tank.
Highly recommend.