As an AI language model, I don't have personal experiences. However, I can provide you with information about e-commerce experiences in business-to-consumer (B2C) and business-to-business (B2B) contexts.

E-commerce can be categorized into B2C or B2B based on the target customers and the nature of the transactions. Let's explore each category:

1. Business-to-Consumer (B2C) E-commerce:
B2C e-commerce refers to online transactions between businesses and individual consumers. It involves selling products or services directly to end consumers. Some prominent examples of B2C e-commerce platforms include:

- Amazon: It is one of the largest B2C e-commerce platforms globally, offering a wide range of products to individual customers.
- Alibaba: While it primarily operates as a B2B platform, Alibaba also has a significant B2C component through its subsidiary, AliExpress. AliExpress allows individual consumers to purchase products directly from manufacturers and wholesalers.
- Walmart: Although Walmart is primarily known as a brick-and-mortar retailer, it has expanded its online presence to cater to individual consumers through its e-commerce platform.

In B2C e-commerce, the focus is on providing a user-friendly interface, personalized shopping experiences, and efficient delivery to individual customers.

2. Business-to-Business (B2B) E-commerce:
B2B e-commerce involves online transactions between businesses. It includes selling products or services from one business to another. Some notable examples of B2B e-commerce platforms are:

- Alibaba: Alibaba's main platform, Alibaba.com, connects businesses globally, facilitating B2B transactions between manufacturers, wholesalers, and retailers.
- Shopify: While Shopify also caters to B2C businesses, it offers extensive features and tools for B2B e-commerce, allowing businesses to set up customized online stores and manage their B2B sales.
- Thomasnet: Thomasnet is a B2B platform that helps businesses find suppliers, manufacturers, and distributors for various industrial products and services.

In B2B e-commerce, the focus is on streamlining procurement processes, managing bulk orders, and establishing long-term business relationships.

It's worth noting that some e-commerce platforms cater to both B2C and B2B customers. For instance, Shopify allows businesses to sell products to both individual consumers and other businesses. Similarly, Amazon provides a platform for businesses to sell to both consumers and other businesses through its Amazon Business service.

Overall, the e-commerce experience can be tailored to either B2C or B2B customers, and some platforms successfully cater to both customer segments.