Complaining in writhing versus Complaining in person

When people eat out at a restaurant, they happened to meet the situation that they complain about their service or food. (When people eat out a restaurant, and there happens to be a situation in which they compain about their service or food.)  In Tthis kind of situation, some prefer to complain in writing, and others prefer to complain in person. Complaining in writing is sometimes a good way to complain about their service because people is are emotional creatures. People who were upset about humble(a lack of/bad/inadequate) service are not able to show some manners express their complaints to the people who offered bad service face to face. If people carry their opinion with writing, they will express their opinion carefully.(If people carry their opinion in writing they will express their opinion carefully.)  However, I think that complaining in person is a better way. There are reasons why I think so.
First, if people carry their opinion in person, the effect is fast. When people go to a restaurant, if (the)food is not good or clean, customers are able to ask the chef to remake the food. In this kind of situation, if customers are patient and have food that is not good and clean, they will finally(likely/ulitmately) be sick in their stomach.  (In this kind of situation if the customer is pateint, and has food that is not good and clean they will be sick in their stomach.) That are able to cause a big problem. (That would cause a big problem)
Second, if people express their opinion in person, it is easier for offers to understand their complaint. If people say their complaint directly, they can decrease the possibility to misunderstand about their meaning if it had been written in paper.
While people talk about that problem each other, they are able to correct their meaning that the opposite person understood incorrectly. (When people talk about their problem amongst one another, they are able to correct their meaning so that the opposite person had previously misunderstood.)
In conclusion, I prefer to complain in person. Even though way to express their opinion in writing is smooth, it is hard for people to communicate correctly each other and communication rate can be a little bit low. (Even though expressing their opinion in writing is smooth, it is hard for people to communiate correctly with one another and the communication rate can be a bit low/slow.)

Hey Nice Job, a few of the sentences I had an idea of what you wanted to say, but didn't know for sure what it was so I just rephrased into what  I thought you were trying to say.  Happy Holidays!

Complaining in writhing versus Complaining in person

When people eat out at a restaurant, they may happen to meet the situation where they complain about their service or food. In this kind of situation, some prefer to complain in writing and others prefer to complain in person. Complaining in writing is sometimes a good way to complain about their service, because people are emotional creatures. People who were upset about humble service are not able to show good manners face to face to people offered bad service. If people convey their opinion with writing, they will express their opinion carefully. However, I think that complaining in person is better way. There are reasons why I think so.
First, if people express their opinion in person, the effect is fast. When people go to a restaurant, if food is not good or clean, customers are able to ask the chef to remake the food. In this kind of situation, if customers are patient and have food that is not good and clean, they will finally be sick in their stomach. That can cause a big problem.
Second, if people express their opinion in person, it is easier for the restaurant staff to understand their complaint. If people give their complaint directly, they can decrease the possibility to misunderstand about their meaning, compared with writing the complaint on paper.
While people talk about that problem each other, they are able to correct their meaning that the opposite person understood incorrectly.
In conclusion, I prefer to complain in person. Even though way to expressing their opinion in writing is smooth, it is hard for people to communicate correctly with each other and the communication rate can be a little bit low.

[This is quite good.  The mistakes are with complex expressions.  You know the basics fairly well.]