have a test of handling it in any Leica store. The EVF is one of the best. Personally I tested it in the previous Leica Store in Raffles Hotel (now at Fullerton), I do find it too huge (with the 24-90mm worse) as I have small hands

Anyway, as of Leica's reputation, the built quality is superb. Best thing is can use Leica M's tiny but superb quality glass via adaptor.