I have taken possession of a hand built Harrelson Bravura recently with a #1 leadpipe and #4 bell combination. This trumpet is intended to be used in Stage/Jazz Band and Big Band genres and is likely to sit with me in the 2nd and 3rd chairs, as required. (The build combination is similar to one often preferred by Monette players, apparently ref. Harrelson website).
The other options I specified included medium weight upper and lower caps, Amado water keys, and monel valves. I asked that the instrument be a brushed finish and then silver plated (gives a nice brushed grain to the finish - not quite frosted but similar) and polished caps, inner bell, and leadpipe. I haven't had inserts set into the valve buttons which are just polished silver.
As to playing, well this trumpet is being compared to my normal instrument a Getzen Eterna Classic 900 (1973) that I have used with a Monette B6 non Prana MP for the last few years and have found to be a nice light weight horn capable of imposing my sound if I choose. The 900 replaced a Getzen 700 S and I found the 900 provided more feedback as the gauge of the bell is lighter.
The Bravura is a solid trumpet in every respect - it is quite heavy >3kgs - much heavier than the Getzens, and with the Bravura bracing, heavy caps, and solid build takes some getting used to - having been 'acclimatizing' (sp) for the last three weeks following Jason Harrelson's very specific instructions, my sound is strong and pp seems to be easier somehow. My ability to slot notes throughout my range is enhanced, the trumpet just seems to react to me thinking (hearing if you like) the note that I want. My Barvura is easier for me to play in that it doesn't seem to choke as I venture into my upper range and the sounds is clear, clean, and "on song". The valves are good - the Getzen valves are considered some of the very best - the Bravura valves, using Ultra Pure from the off are as good (not better, but as good).
On the downside - the polished leadpipe shows my fingerprints but that just reminds me to wipe the trumpet down after I've finished. Some don't like Amado water keys, but these particular ones seem to be better built than the 'same' keys on my Getzen.
I have been practicing alone in a large 'live' hall as per Jason's instructions and staying with the Harrelson exclusive of my other trumpets - now if I can only get some more work on my timing, and attacks.
Any questions - I'll try to give a sensible answer. (Oh, the medium caps still allow the trumpet to 'just' fit in the Pro Tec type Getzen case that I use - I checked the clearance after some comments on TM recently - it is close though)
No - I'm not acting as an agent for Harrelsons, rather I'm a satisfied customer who may be able to assist you in "knowing" the Harrelson Bravura a bit. I am, in essence, endorsing my decision to go with Harrelsons and you may find some of my comments on Jason's website.
My comments may, or may not, turn you onto, or off, Harrelsons - but at least I have been able to give you personal experience and playing impressions, perhaps to assist in your future selection.