Emgo Speedo & Tach

Does anyone have any experience with these? I am looking at steadfast cycles online. About 90$ apiece.

Good value. Not original, but if it doesn't matter to you...

Uh oh...

Thank you for your response , Paul. I knew that Emgo had a questionable reputation for some of it's parts. I did do a forum search and there was a long thread about what Emgo products were of good value, and what was garbage. The speedo and tach was not mentioned. I wouldn't say I did not care about originality, I would say I am ready to ride and quit spending money.
If they work adequately I will use them. If someone has given them a shot and they are shite. I would appreciate a heads up.