only works for verticals and even that with difficulty. its geometry is very wrong, it is not convenient at all in use, the water pump is not effective, the whole design is a black mess. better get the small tiller. stay away from this, it’s wasted money. 80 MINUTES TO DIG 2 STRAIGHT LINES IN MOSAIC WITH DIAMOND DISCS FROM THE SAME COMPANY THAT I PAID EXTRA FOR, JUST STAY AWAY!!

The tool is extremely powerful and doesn't hesitate anywhere!
It easily digs without pressure, simply with its weight! Additionally, it leaves no residue, so you're ready to connect the pipe directly without needing to clean the groove!
I'm ready to buy branded discs as well, although the ones it has from the same brand are very good.
When using water, you don't get dirty anywhere and at the same time, the dust is greatly reduced, while the debris is collected right below the digging. Of course, afterwards, the entire chamber where the discs are needs a good cleaning, but be careful not to let water enter the body of the drill.
Right below the socket, it has a thermal machine for automation, in case it needs to shut off on its own, while on the pump socket, it has an on-off switch so you don't have to constantly plug and unplug it.

However, I take away one star because it has some silly negatives:

1. It has a short cable. Of course, I replaced it.
2. The tightening keys it has are all useless. I went and bought new ones, spending less than 10€.
3. Nowhere does it mention that if you put less than 4 discs (I put 3 because it holds 16 mm for electrical piping), you need a separate extra spacer, otherwise the discs won't tighten and they will freely rotate in the rotor. I solved this with large wheels. Of course, the store where I bought it had spare spacers.

THE REVIEWS ARE INDICATIVE ..
As a first impression, it looks good (I have never used something similar before).... It comes with a metal case, integrated with 5 discs (probably the use of the compressor is not necessary), a water pump, a water hose, the ability to connect to a vacuum cleaner for dust, a key for adjusting the cutting depth....
These are the first impressions, soon for an update on impressions ......

The worst tool I ever had in my hands. Completely useless. Overpriced for what it claims to offer.
So heavy that if you work for five minutes, you need five days to recover.
Water pump burnt out from the market, never worked.
Trying to cut a wall, it burned and that's how I was saved from this torment.
Buy it, a test will convince you

Awesome tool, it cleared out an 80 sqm house for me along with some easily consumed cement. Very convenient with the water bucket next to it and the small pump. Of course, you have to learn how to carry the cable and water hose to the bucket on the ladder, which you move every time you finish digging about two meters, and it's a bit heavy (none of these bothered me at all as it gets the job done). It seems like a very high-quality tool, by collecting the blades you can make the exact cut you want, and the pipes simply attach to the groove. Highly satisfied, I highly recommend it for its price