I would reccomend that you look at Lanling products , they come with a full 1 year Guarantee and a customer service that is second to none . He replied to the last email I sent him in under 10 minutes. His shipping is lightning fast too (3 days from china to the UK).
I am in no way affiliated to him , but have only had graet service and great products from him.
Nero design purchased one and its confirmed that it uses some half-decent galvos instead of the crap scanners other cheapos use. As to the quality of the actual lasers though, I can't give you a solid answer either way.