I've owned this bass exactly one month now, and after playing it every day since I decided it was time to leave a little feedback.
First I have to say I was pleased with the quality of packing and shipping. I received mine 6 days from the day I ordered it. That's 6 days from Thomann to my front door in the USA, amazing! It came double boxed, well packed, and damage free.
I'm still considered a novice bass player. I shopped around for several weeks looking at Squier, Ibanez, Epiphone, etc, before I decided on the B-450. I do not regret my decision in the least! Its a great bass and can easily compete in price brackets far above what it costs.
Pros: Was perfectly set up from the factory. After tuning it I found the intonation, neck relief, and action perfect. It is well balanced. The tone, volume, and balance pots are smooth and noise-free. Frets are well contoured and smooth. The tuners are accurate and have no problems keeping tune. Overall very solid construction.
Cons: The strings aren't the greatest. The tuner nuts needed snugged down after a few weeks of use.