If you are new (or new again) to Burst and would like to install the best wallet available to you, here's what you do:
Install the Qbundle: https://burstforum.net/topic/8073/qbundle/1
This is the designated successor to the AIO (All In One)
Go to http://package.cryptoguru.org/
If you run Debian or Ubuntu, you run one command line and you're basically set. The link has all the instructions you need to get installed and running.
If you run something more exotic, see "From Source" below.
Get it from Google Play here
Did you know that if you need some Burst to start mining, a screenshot of its (whole) QR page - posted in the Burst Discord (https://discord.gg/PMUgVSY) - is worth 10 Burst?
Pretty much like Linux "From Source" (see below).
Also, you should read the section "Which DB Backend?"
If you are on some more exotic system, or just plain cool, you can download the wallet source from here: https://github.com/PoC-Consortium/burstcoin/releases
and read a little bit through https://github.com/PoC-Consortium/burstcoin/blob/master/README.md
If you are even cooler - and with slight self-destructive tendencies - you can get "the newest of the newest sir!" and clone https://github.com/PoC-Consortium/burstcoin.git right away. No warranties there.
In case all you have is your browser, you can visit the PoCC Online wallet, hosted at https://wallet.burst.cryptoguru.org:8125/index.html
Normally you should prefer a local wallet instead of an online wallet, but the PoCC has so many Burst already, the chance we would want to steal yours and by doing that devalue ours is pretty small. Also, if all you need is to set a reward recipient for pool mining, https://wallet.burst.cryptoguru.org:8125/rewardassignment.html
is a nice and explanatory page.
If you want to play around with the wallet, make some fun transactions and experiment without remorse, you go to "The TestNet" http://22.214.171.124:6876/index.html ask someone from the PoCC for a few testBurst so you can play around and gain experience without putting your precious Burst at risk.
Which DB Backend?
Since version 1.3.6cg of the PoCC Burst Wallets there has been support for three different DB backends, each of which has its pros and cons. These are
mariaDB: "Enterprise"-like backend. Requires more hassle to set up (if you do it all on your own, if you are on Qbundle or use the PoCC Linux packages, this is done for you) but once up and running, the highest performing and most stable option.
DB size is smaller than H2, but bigger than Firebird.
Firebird: Embedded database, which means no external program installation necessary. Firebird is considered more stable than H2, and has the smallest DB size of all currently supported DB backends, but it can suffer from low performance when syncing. When synced, performance is good.
H2: The database used in the old/original versions of the Burst wallet. It can blow up it's size up to little more than twice that of a mariaDB backend (when mariaDB was at 5 GB, there were 13GB observed with H2) and is not considered very stable.
(most of the "stuck" wallets at https://explore.burst.cryptoguru.org/tool/observe have H2 backend). However, the PoCC wallet supports this so you can quickly migrate from your old wallet by just using the burst_db file.