After using expensive valve preamps when recording in studios, I was after a cheaper version for my home studio; something that would add warmth to a bland digital signal.
At a reasonable price, I find that the ART Tube MP Studio V3 does just that.
The preamp itself comes with presets for certain instruments or vocal types, although after experimenting with these, I don't always go with their suggestions depending on the tone I'm after.
Playing around with input gain also is quite interesting, and with a clear VU meter and LEDs to indicate overloading signal paths, you have a clear insight into what simple adjustments can do.
The phantom power +48v is great for condenser mics too.
Another use for this preamp that I have found useful is using it as a DI for both bass guitar and acoustic guitars.
Obviously the sound quality is subjective from person to person and I have read mixed reviews about this. Ultimately, this is no Neve preamp, so don't be under any illusion that it is; however, great and easy to use for simple home demos.
As I needed this to use in the UK, it came with an EU to UK plug converter, this was it's only downside... being provided with a genuine ART UK adapter would have been much better as now the adapter+EU/UK converter is extremely cumbersome and doesn't stay in the socket happily without a bit of gaffer tape to hold it in place. DO NOT use any third party adapter as an alternative as the mA has to be exactly 1000mA at 9v AC. Most third party adapter tend to be around 300-500mA and can do serious damage to the preamp.
In Thomann's defence, I never raised this as an issue and I'm sure they would have resolved the matter.
So, to summarise: perfect for home demos and use as a DI, just be wary about the power source - check with Thomann if buying in the UK