It is undeniable that the specific issue of sth./ 或接whether 从句 has become controversial. However, in spite of those who believe that sth. have more negative/positive effects, I hold opposite attitude.
The drawbacks of sth are obvious. Some people are really concerned about... They hold that...(请解释). Other feel upset at...(另外一个弊端), which will damage.../endager...
It is often the case that ...(此处总结上段提出的两个弊端). But when it comes to..., ..., and ...,(此处先总结写你认同的几个好处), an increasing number of people including me are convinced that...For one thing, ... The evidence recently presented in research journals available to the public confirms that... 写调查结果，通过数字来证明自己所列举的好处1. Besides, ...(另外一个好处). In other words, ...(换种说法解释). This is another aspect of how sth benefits us.
All in all, sth has played a significant role in... It has both upsides and downsides. But it is my firm belief that its disadvantages/advantages of... outweigh the advantages/disadvantages.