mongodb database design, computer room database design issues

I have only used relational databases before. I read some mongodb books but I am still a little confused. Regarding the multi-layer nesting of mongodb,
The following table is an excel table that needs to be made into a database. I directly used mongodb for multi-level nesting

According to this table, if you directly create the mongodb nesting format, you need 4 levels of nesting. The json data is as follows :
{

"_id" : ObjectId("5858f844d5155de57df5efb3"),
"SITEID" : 1,
"ZONE" : "市南区",
"SITENAME" : "万象城机房",
"ZADDRESS" : "山东路10号",
"CLASS" : "D",
"LNG" : 120.339943,
"LAT" : 36.089903,
"SITE" : "",
"COSTINFO" : [
  {
    "RENT":[
      {
        "RENTALAGREEMENTNO":"协议标号",
        "RENTPRICE":"3万",
        "CONTRACTPERIOD":"1年",
        "EXPLANATION":"暂时还没有"
      }
    ],
    "POWERRATE":[
      {
        "supply":"业主转供",
        "ELECAGREEMENTNO":1234,
        "PRICEOFELEC":1,
        "METERLOCATION":"一楼电力室",
        "ELECBILLPAYMENTCYCLE":"年付"
      }
    ]
  }
]

}
Please help to see if there are any errors in building the database in this way. Will there be any problems with subsequent data maintenance and query statistics? Thank you.