I have one E1ss-sb. For the price I paid, 550€ new, it is a fine instrument. A much better deal than the 3x more expensive E10SS or nearly 4x more expensive E20SS imho. But NONE of them sound the least similar to J45 Standard. These Eastman models are ok if you accept they may resemble the original to a certain degree and you accept the sound they have for a price that is not cheap. However if sound and built matter to you more than looks, you will need to get yourself the real thing for 3.000€.