Please help! Probably Neville but anyone who can point me in the right direction!

Our company has been using Pastel Partner for years. We send out about 500 invoices every month - usually recurring but often need to change, update some of the invoices every month. We also use the recurring receipts and the bank manager. We want to be able to allow for more than one user and are considering updating to a cloud based system but are worried about what it all entails. Pastel support has not been very helpful and I worry about migrating.

Can anyone give advice, happy to pay for a consultation with someone who knows both systems.