One page Magento checkout extension is the need of the hour for your Magento based eCommerce site. There are uncountable reasons to adopt the one-page checkout model.

1. Why do you need a One page Magento checkout extension?
With every eCommerce business comes certain perks and challenges. For a
Magento based eCommerce store luckily perks are the rulers. However, there
are few challenges with the Magento stores where a third party intervention is
necessarily required. I am talking about the challenges your customers face in
the checkout process.
The default Magento checkout presents an effective interface for checking out
on the Magento stores. However, the latest advancement of competition in the
eCommerce market does not support the idea of sticking to the default
checkout for driving desired macro conversions. There are multiple grounds to
which it feels like default Magento checkout needs an upgrade.
In this article, I am going to discuss how sticking to the default Magento
checkout extension might not be a competitive option for you, and why do you
need to replace it with a customized One page Magento checkout extension.

2. The checkout length
Whenever I go to supermarket for shopping, I pray that checkout line should
not be crowded. If I find a checkout line very lengthy, I automatically run my
eyes to see if any other checkout line would be smaller than this line. That’s
human tendency to always look for a better alternative.
Now, let’s consider an eCommerce site, instead of a physical supermarket. Here,
the case might not be exactly the same. If a customer finds your checkout
process lengthy, he/she will not run his/her eyes immediately to see a smaller
checkout process, but it will surely affect the decision making for the next time
when he/she decides to shop online. Your store might not be the first choice,
just because of the lengthy checkout forms customer filled the last time when
he/she was on-board.
While replacing your generic Magento checkout with a one-page checkout

3. structure, it will immediately reduce the number of pages from your checkout
process. Moreover, it will also make sure that some not-so-useful fields are
disabled from the checkout form to make the process, even further short.
Cart update
The default Magento checkout uses a page refresh to update the information
changes in a shopping cart. It uses a separate page where you can update some
minor cart details. However, each time you update the cart you will have to go
though a necessary page refresh otherwise the information will not be updated.
If you have a one-page Magento checkout extension you may overcome this
hurdle very easily. For example the Knowband-One page Magento checkout
extension uses an Ajax based update for modifying a shopping cart at the
checkout page. It means, if you want to remove a product from the cart, or
update the product quantity, you do not need to refresh the whole page. The
cart will be automatically refreshed using Ajax requests and without refreshing
the whole page.
Sign-up, Login and Social login
Social login has become an integral part of eCommerce websites nowadays.
Customers really hate when you ask them to perform a necessary sign-up at the
checkout page. The default One page Magento checkout extension does not
provide any social login option though. However, guest checkout option is
already there that customers can use as an alliterative to account creation.
Problem is, you might not want to allow a guest checkout every time. I mean, a
guest checkout is useful to convert a random customer for one, but it will not
provide you enough opportunities to make some repeated customers by giving
them a personalized user experience. For that reason, a sign-up is very
important for your conversion rate optimization (CRO) front. So, you need
something that will make the sign-up process so easy that no customer will hate
the sign-ups.
It is when social login comes into the picture. A one-page checkout extension
with social login option at checkout process is a bonus to your CRO campaigns.
It works in multiple ways to deliver a hassle free checkout without a need to fill
the lengthy account registration-forms.

4. Finally,
A one-page checkout is the need of hour. The most important reason for
adopting the One page Magento checkout extension for you is because your
rival sites have already adopted it. You cannot afford to loose against your
competitors for something that you can acquire very easily by just installing the
a proper One-page Magento checkout extension.