This mixer handles all bread doughs with ease.  I have hneaded my dough for up to 30 minutes and the machine wasn't even warm. There is NO mixer head wobble. Everything is solid at speed 11.  I can whip eggwhites in 30 seconds or less. The specially designed whip attachment is the best I have used.
All accessories are made of heavy stainless steel.
The only thing missing is a scraper paddle and a folding tool. Hopefully they come out with those soon. The smart features are easy to use. Hint: when pairing phone with mixer hold phone on left side of the mixer head. It connects better from that side. This mixer also is compatible with most KitchenAid attachments that fit in the KA hub. I have three i tested and they worked perfectly with the G. E.. 
The mixer is solid and weighty. But the longevity will most likely make up for the weight over years of use.
I would consider this a professional mixer that fits perfectly in any kitchen.