I recently bought this piccolo trumpet to replace my Schilke P5-4MA that my daughter took with her to college. I've been playing professionally for over 30+ years and my daughter has taken my Schilke X3, E3L, P5-4MA, Bach Stradivarius 229 25R C trumpet and Bach Stradivarius Flugelhorn to College. Luckily I have other pro Bb an C trumpets but she has taken almost all my small trumpets. This Thomann piccolo trumpet is an exceptional instrument for the price. It does seem a little tighter than the P5-4MA. Having the correct mouthpiece is the key to all piccolo trumpets not just this one. I have played piccolo trumpets professionally for 30+ years. I play a Warburton 5S with a Ken Titmus KTCM Reverse Taper GG backbore. The Warburton H backbore is a similar option to the KT backbore. With the proper mouthpiece the quality of sound and intonation throughout the instrument is exceptional. I haven't found any bad notes. I do plan to play this professionally and I'm sure nobody could tell if I were playing this piccolo or the P5-4. That's how good the sound is. If you buy this instrument make sure you are playing a lead style mouthpiece with a shallow cup and a tight backbore. I'm sure a Schilke 14A4A, 13A4A, or 11A4A would work great with this piccolo. It also appears to be a well built instrument. Use good valve oil. I hope this review helps anyone who reads it.
I've also just ordered the Thomann 600 Flugelhorn and I'll let you know what I think as soon as I get it. I wouldn't have ordered it if I wasn't happy with this piccolo. In the future I will probably buy one of the Thomann Eb trumpets as well. I'm very impressed with the quality.