First of all, I found David's revisions and comments quite helpful and constructive. The polished document reads much better than the original one drafted by myself in terms of the structure and word choices. In addition to that, I was also impressed by his prompt response in just a few hours.
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顾问的响应速度也是太快了，而且改的非常好，我很满意。主页客服妞略碍眼，建议变成小的浮动按钮，在需要的时候点开。
First of all, I found David's revisions and comments quite helpful and constructive. The polished document reads much better than the original one drafted by myself in terms of the structure and word choices. In addition to that, I was also impressed by his prompt response in just a few hours.
价格合理，顾问响应迅速。
Elizabeth responded faster than I expected, with helpful comments and suggestions every iteration.