A funny little thing happened with my Samsung...
Well, the SEBO X series in the U.S is available with a manual height adjuster known as the G2/Essential. That should beat those who moan about the SEBO X4 not going deep enough.
Frankly I've never had that problem with SEBO vacs though.
But then I learnt the hard way, destroying a wool carpet when I first started out as a collector and thought that my Dyson was tops. Then I discovered that the suction and hard brush roll was taking off more than just the top layer of dust on the carpet. Now I no longer care about "deep cleaning" a carpet because part of me thinks "am I destroying the carpet by over-cleaning the textures," or "does this carpet really require a proper vacuum run over it, again?"
As some of you know I lost my mum last year and I just knew that she was around the home - just had a feeling, I'm sure those who have lost parents would probably agree - anyway, I did a video in my room with my Samsung Galaxy phone. My own video camera via my SLR camera never picks up what I thought were dust balls flying around the room. The dust balls however were not dust balls, but orbs!
However, when filming parts of the home during the day before vacuuming and in normal daylight, my Samsung phone picks up flying dust very easily. It is more apparent if I walk with the phone in my hand and walk over carpet, only to see the dust flying up and at times have hit carpet patches with my hand. I don't need any more proof that despite my obsession with cleaning and either using a dirty fan vac or a clean air vac that even after cleaning, there's still dust in the air that I can't see and thus settles on the carpet that requires cleaning up yet again.
Thus I don't think it is that important on whether a vacuum cleaner can deep clean carpet or not - because at the end of the day, there's always dust settling on the carpet and it is impossible to keep going over the carpet to ensure all manner of dust is taken up - at the cost of ruining the carpet as well if you over-vacuum. If the top layer dust that I can see is taken away, I'm quite happy with that and in addition, if the pet hairs and anything else gets sucked up, I'm one happy kitty!