Straight out of the box, the Knosti doesn't really look anything special. The plastic is very cheap looking but don't let that put you off; it's a great machine.
My main advice is DON'T USE THE SUPPLIED FLUID. It certainly cleans records but leaves a sticky residue behind it which slowly but surely gunks up your stylus tip. Believe me, this happened to me. The solution is cheap and simple. Make up your own fluid using 700ml lukewarm water, two drops of washing-up liquid and a cap of distilled malt vinegar. I've used this and it works great. Pour the fluid away and make up a new jug for every batch of 15 records.
I'd recommend the Knosti to anyone who has a lot of secondhand records of dubious provenance. Some real old clunkers in my collection came up shining after a run through the Knosti. It's the only practical budget solution to those ridiculously priced vacuum cleaner efforts.
Further advice: After cleaning, leave your records to dry for approx 1 hour then put them away into new poly-lined inner sleeves. If you've got plain paper ones then bin them.