BTC wallet was created in 2016, to support bitcoin only before bitcoincash was added to it. Though not so fanciful but it has all the features of a reliable wallet. It has support for up to 25 fiat currencies.
The wallet gives the owner the ability to transfer bitcoin via a mobile or desktop devices. It is an open source wallet and is hierarchical deterministic(HD) wallet. As part of security measures each time you are making a transaction a new address is generated.
No deposit fee and when sending coins from one btc wallet to another it is also free, when sending bitcoin to another btc user you don't even need the btc address instead you only need the contact of your recipient. But if you will buy btc within the wallet you are going to pay a small fee or when sending your bitcoin to external address.
The customer support service is linked to bitmain support service as well.
The customer support service is linked to bitmain support service as well.
Conclusion, the wallet is good but must fully understand its pros and cons before going for it.