I have a Hansen, and I love it. It was first generation (it is #18), and they have upgraded continuously. Mine is not a suitable production wheel, and even though I love it, I would prefer it be faster. They do make a production level e-spinner. If I upgrade I will go with the Woolee Ann, made by the developers of the Woolee Winder. Both Hansen and Woolee Ann developers collaborate with each other and have both consulted with Judith MacKenzie during development. If you aren’t familiar with her, she is the BEST spinning resource ever, as well as a wonderful person with more knowledge of all things spinning than any ten people out there. Both Hansen and WooleeAnn are high end and IMHO, quite expensive. They are worth the money, but you could but two Kromski wheels for the price of either one, and you could definitely buy a used Schacht for less. There are some sweet little e-spinners out there that are very reasonably priced, keyword little, they don’t hold much on their little bobbins, but they are affordable even on tight budgets. I honestly recommend you consider getting a used really good wheel. You will pay a hefty price for a good e-spinner. By the way, what wheel are you saving for? Have you considered a drop spindle? They can be addictive and are also in the affordable range.
Also, I want to send my prayers as you begin treatment for Breast cancer. Please know the treatments have made huge progress both in terms of success and dosing tolerance. You can expect a good outcome, and I hope that gives you encouragement as you take this journey. You will have to be a warrior, but the battle is wirth it. God bless you, your family, and your doctors. Peace be with you.