Is it worth creating a portal on Bitrix?

Question

CMS

It is necessary to create a portal with a large database open to the user, a system for uploading data to call center employees from Excel to the database on the site, a payment system for full access to the database, an electronic assistant (database filtering in accordance with the question asked), additional functionality that will have to be order developers whether it is possible to implement and whether it is worth it on Bitrix. If possible, give arguments for and against

Answer 1

After working with MODx, Yii, Symfony, I did not find any advantages.
Something lighter in terms of scaling and performance will suit you. The price will be the same.
Of the minuses:
1) The cost of the "product" itself
2) The cost of additional modules (some for 100k)
3) An incredible amount of low-quality code
4) Speed ​​of work
5) Special conditions for hosting
6) Bitrix specialists, like 1C specialists, are a separate narrow-profile category market, which takes more money for what understands the feces produced by 1C.
7) Difficult and long scalable
8) In some places there are jambs in the code that can only be fixed with rusty crutches
9) The initial weight of the engine (~ 300mb). It's scary to even think that it was possible to write 300mb into the engine.
10) Not sharpened for narrow-profile tasks

Answer 2

I have been working with 1C Bitrix sites for several years.
+ All your wishes can be realized by means of this CMS.
- Paid.

Answer 3

The question is, who will create?
Of the minuses:
In many ways, the system is redundant in terms of functionality. It costs a lot of money.
Pros:
Good documentation
Easy to find a developer

Answer 4

Not worth it, because Bitrix24 is primarily a corporate portal.
You need CRM, so it's better to look at other options.