Cisco is a name well known in the IT field. The technology is tried and true and they have built a reputation on a solid platform. Though many people do not like the cost of the devices and the continued fees associated with long term ownership, you get what you pay for. I dont hesitate to recommend Cisco because I know people will get a solid product that will last a long time.
Huawei switches are ideal for cases where performance is not essential, for low traffic solutions and for equipment management. It is not recommended for situations of high performance and stress, immediate availability and high scalability. It is also not advisable to use them in solutions that involve hardware from other brands, the integration of Huawei with Cisco, for example, is very traumatic and the results were not optimal in my case.
Easy setup and configuration. While the web UI has its quirks, setting up VLANs and other tasks which can be exceedingly complicated on other switches, are much easier on Cisco SG switches. You also have the ability to upload an existing configuration to switches, which can speed up the task of deploying many identical switches.
Features for the price. Getting a 48 port L3 switch with PoE+ for less than $2,000 is a great value.
Reliability. We have hundreds of the SG switches in dozens of client sites, many in harsh conditions, and they just keep going.
The web UI has taken a turn for the worse with the latest firmware on the SGx50 models -- the bifurcation between basic and advanced modes and the changes to the way VLANs are modified is a step backward in my opinion.
The power bricks on smaller models are enormous. I'm sure, however, keeping this circuitry external to the switch is what keeps my switches running year after year in hot environments.
Fans can be a bit loud on larger switches -- this is true of pretty much any 1U device though.
The switches perform very well in our core backbone and also in metro Ethernet networks. We are able to provide high service availability and greater resilience for our customers. The switches also provide high performance in several data centers where we have a presence focused on IX exchange. They are also very useful as CPEs.
Cisco is more enterprise level, more reliable, and generally more feature rich but also very expensive. That being said old or refurbished Cisco switches are much more affordable and in comparison to even new switches from the competitor they are still a great value even though they are used. I like Ubiquiti switches as well but Cisco is usually better overall.
The performance of Huawei is lower than Cisco, but initially the costs inclined the decision towards Huawei, but unfortunately, it was not, the licenses and the manager fired the investment to make it very similar to cisco. Therefore it is preferable to go to the Cisco switches for reliability and robustness.