Are Yoyomamma Yoyos any good????

Yo-Yo Reviews Looking for Help/Recommendation
1

If you go on ebay, You’ll See these yoyos called:
“Prof yoyo w/ free yoyojam yomega yoyofactory duncan art”.
They come from a Brand called YoyoMamma and there site is yoyomamma.com.
Has anyone Played these yoyos/had any experience with them?