The kit has gone together really quickly and without and fuss even spacing the engine pods and particle accelerators is aided both by slots in the main body and a placement diagram in the instructions.
The AIP kit allows you to build one of three versions that appeared on screen as the different docking collars are all provided. The trickiest part of the build I found was placing the particle accelerator pieces on the struts to the main motors (I lost one and had to make a replacement from sprue.
Next up priming to check seams etc and then paint.