If you’re considering a coined name for your company or product, it’s helpful to keep in mind a general rule of English pronunciation: When a vowel precedes a single consonant that’s followed by an e, the first vowel is long. Double the consonant and the vowel becomes shortened.
Later: long a. Latter: short a. Miler: long i. Miller: short i.
Yes, yes, there are exceptions. But coined words are like hoofbeats: we expect a horse, not a zebra. We look for simplicity, not conundrums.
Which is why Gruberie is problematic.