So as some of you may know, Magento 2 recommended way to deal with models/collections for CRUD actions is to use service contracts.

But still according to the Magento SE Q&A it seems like most people tend to use the model/resource model/collection directly instead.

As an example to load a quote I can do it directly via the factory like this:

    $this->quoteFactory->create()->load($quoteId);

Where `$this->quoteFactory` is an instance of `\Magento\Quote\Model\QuoteFactory`

But I can also do it via service contract like this:

    $this->quoteRepository->get($quoteId);

Where `$this->quoteRepository` is an instance of `\Magento\Quote\Api\CartRepositoryInterface`

So my questions is **what are the benefits of using service contracts over factories ?**