This thing is BIG. Do not expect it to be small. It is not small. It is big. It is "focal point of the wargame" big.
I will say that there are bits that I found tricky. I had a few disadvantages - my hands aren't particularly steady and I had printed it as paper glued to board, where it would do much better printed directly onto the stiff board - which made small things like the tower windows and the tops of the chimney difficult to set up, so my finished model has one tower window extruding into the fourth dimension, the chimney in all kinds of a mess, and, on a related note, the main building is at about a 15 to 20 degree angle.
But even with these handicaps, it was easy enough to put together and finish. Nothing came out as simply "I cannot make this work". And even my amateurish attempt looks fantastic, drawing wide attention and with a complicated footprint. Put this on a table at your Friendly Local Game Store and it'll fit right in, maybe even draw some applause.
What impresses me about the publisher is that their models are always hugely customisable. Using PDF layers, this can be many different styles of chapel for many different styles of game.
I recommend this highly. Buy this chapel, make this chapel, then buy some clerics and undead paper miniatures and make them fight over it.