Update - Version 2.05 is now out - it has much better functionality for controlling and sending midi, some of my gripes below were addressed.
After changing my midi interface from m-audio (rubbish) to MOTU (Fantastic) many (but not all) problems disappeared - it can be used now with the occasional problem - I would now recommend that you buy it - If you want an easy librarian that WORKS as a VST.
As for the final gripe - Occasionally it stops sending midi and I need to remove the preference file in the install folder and reboot. that happens maybe once a day
------------------------------------------------ I love my pulse and I have been using reKons editor for quite a few versions now primarily with Cubase and Reaper on a PC.
The pulse editor and it has been making significant progress with each release. Earlier versions used multiple midi channels to send and receive the midi to and from the pulse as well as a controller keyboard. This was quite buggy and a bit cumbersome. This time around reKon has implemented the selection of the midi ports directly from the VST editor. You do however have to disable those mid channels in your host for them to be available for the Pulse editor.
New in this version is a standalone option which is actually great for just getting up and playing without firing up a host.
The layout of the editor is clear and easy to use and follow. It seems quite stable. It's raison d'etre, saving patches and being able to visualize and edit them - it does well.
My only quibbles which make me think it's note quite ready for prime time is the following: 1)The application does not remember the midi port and channel settings - so you have to manually set them every time you open the application (standalone or VST)- Not a killer problem but a PITA. 2) When you save or exit a project in Cubase or Reaper, for some reason the VST sends out bizarre midi messages to the pulse that causes the pulse to cycle from the existing patch through all 100 patches - back to the patch you were at - it takes 10 to 15 seconds and can be quite a shock if you were working on a quiet patch.
If these two areas were to be improved I would say the application is good value for money. As it is I find it usable but a bit clumsy.