Quite a bit bigger than a caddy, same class and size as a transporter.
My swb has 1000kg payload and I can just squeeze a 8×4 sheet In The back. 3 seats as well.
1.6 is fine most of the time but if you carry a lot of heavy loads in hilly country or do a lot of motorway mile go with the 2L as it has a bit more ommf and a 6th gear for the motorway. Just drove from south coast to Scotland and back mind you and it’s comfy at 75mph in the 1.6L holds the speed on the hills on M6 so it’s not terrible!
I have one and have slept in it but just throw down a camping mat. Basic and cheap. Reliability has been ok but not excellent but it is 10 year old van. Spent about £900 over 3 years exculding servicing which I do myself. Two problems in first year when I bought it and 1 this year. Again not terrible in the grand scheme.