The conclusion is that currently Qtum has supported the Simple Payment…
The conclusion is that currently Qtum has supported the Simple Payment Verification (SPV) protocol, with the features and convenience that they apply, there may be many users who are comfortable with them
Pros
From the Qtum consensus algorithm to support the Simple Payment Verification (SPV) protocol, it is a very good idea, Qtum's goal is to maintain a decentralized network and bring smart contracts to everyone, including light clients in low bandwidth environments.
Cons
for me they are perfect because they support all their uses.