Sure, Dave. I'll weigh in.
The heater in the 500 gram TJ-068 I'm roasting on measures at 925 watts. It has a very clever doubled walled inner roast chamber that functions as a thermal battery. Once heated to 400+ degrees (about 8 minutes), I'm roasting 16 oz to first crack in 10:15 anytime I want. (profile attached) It also has a separate internal cooling drum for back to back roasts. I roasted over 30 lbs in 3 days about 2.5 hours per day for Christmas.
If the larger Hottop has anything similar, you'll be in good shape. -but for double the price and no cyclone? Pass.
The electric 1kg TJ-067 puts out 3500 watts. We'll have one here this weekend and I'll try to get Dave to roast something on it before he heads south for winter.