I have owned a ZKT 1504 and a 1070. Both of these trumpets play very well. The salesman, Jack Kanstul, has been very polite and helpful. The 1070 was made to my specifications with a light weight bell. I have owned a few trumpets, namely: Olds Special, Vintage Conn 12B, Chicago Benge, Bach Stradivarius180 - 37, 2 Lawlers TL6, Kanstul ZKT 1504 and 1070 with a thin bell. I also have a Bach Stradivarius Flugel that doesn't even compare to a Kanstul 1525. The 1525 plays and sounds great. It has a very mellow a dark sound that is great for jazz and orchestral playing. I rate Kanstul the very highest and recommend them to every horn player who is looking for a great playing horn.