The core replication and its performance. Performance was crucial and, as such, SharePlex is by far the fastest. However, replication to multiple targets as well as from multiple sources to a single target, along with basic filtering and the way it is handled, is also very efficient.
Improvements to My Organization
I can't answer, that would violate client confidentiality.
Room for Improvement
For its function in relation to replication (i.e. filtering), I'd give it a six or seven out of 10. GoldenGate has much more functionality by comparison. Queue manipulation as well. It lacks functionality for refining data during the replication process (which GoldenGate, for example, is capable of).
In SharePlex terms this would be function-based data partitioning (which it doesn't have in the above-stated versions).
Use of Solution
Five years. Not using it at current customer's site.
Only in version 5. Version 6 and onward became quite stable.
Only in version 5. Scalability has improved, even in minor versions, from version 6 and up.
Customer Service and Technical Support
On a scale of one to 10, nine.
Initial setup is actually quite easy. When dealing with partitioning of data, (advanced filtering), it starts to become a bit complicated, but not a big hassle.
Pricing, Setup Cost and Licensing
I haven't dealt with pricing and licensing.
Other Solutions Considered
A proof of concept with GoldenGate was set up but wasn't completed, as GoldenGate wasn't fast enough (at that time - maybe it is today). GoldenGate was in scope, but failed in performance.
If performance is crucial, SharePlex should be your primary choice. If functionality in filtering (changing replicated values or adding calculated values or anything like that) is a priority, GoldenGate wins.
Disclosure: I am a real user, and this review is based on my own experience and opinions.