Simple though somewhat complicated assembly. The filter pump, the water SUPER filtered even after weeks the water was still clear glass we came from, even without chlorine, oxygen completely enough so that the water does not tilt out. Important contaminants must be removed immediately as to sample insects and do not forget to make the evening tarpaulin over the pool, time for 2 people max. 3 minutes. As our garden is steep I had in mind only my but even that went without problems. Looked just not round out but more like an egg) to the garden now adjust so that the pool next summer just is. Good quality, sämtliches essential accessories while, I highly Recommend ..... Now a year has passed, we have the pool in the utility room kept what he has survived. Garden adjusted pool is now straight. (No more egg) Since we had ordered no replacement filter in the first year and impatient as I am everything had to be perfect for the construction, I have here at the hardware store to buy a filter for tight 10 euros. In Amazon the whole about 18 euros would cost me; However, 6 filters. Dues paid) .... So now a few final tips, pool once a week free of debris; like flies, etc. time 5 minutes. Every 2 weeks sometimes clean the floor (accessories included) time 10 minutes. Additional pure oxygen 1 time a week later has simply drain the advantage you can, the water .... we must at the chlorine not. Last but not least security; Children without seahorses without water wings if possible GS tested wings. Never unsupervised regardless of whether the child can swim or not. Make pump completely dead if someone wants in the pool. The tarpaulin is not a safety device on the contrary. Especially true in infants; Get ladder out of the pool if you even just for 10 seconds, garden sight loses the Scion has no way to get into the pool.