Im not sure exactly which unit youre talking about but the one that sits in the little base and is always falling over you often have to hold them down for a long time. Maybe they arent supposed to but some do. The bigger one that has the bottle swing out will light very easy. I have several and they are great.
Is the boneview the one that I think Doc Horton said was good? Good thread about those awhile back.

Yes, I'm talking about the smallest buddy that sits propane canister down. Wore my thumb out trying to light pilot without success. Not sure on Boneview but somebody recommended them when I mentioned battery handwarmers on here a month or so ago. So impressed, I ordered their battery heated socks yesterday.

As I mentioned earlier, I've had much better success getting the pilot flame lit by holding the Start button down for second or two to begin releasing gas before pressing it down completely to engage the piezoelectric starter. But then, I'm an old fart who has lit more than my share of old pilot lights where this is the required practice. If you push the Start button down completely with no delay, it can take forever to get the pilot flame lit. At least, that's been my experience.

As for keeping it from tipping over, I picked up a base somewhere that has flaps or legs that rotate out that do a great job in keeping the heater from turning over. They can be retracted for easier transport.

Improved Propane Heater Base

Rifle hunting from a tree saddle

Since the Boneview battery handwarmers were such a hit this past weekend, I put an order in for the Boneview battery socks and they came in today just in time for this weekend's cold temps. Those Lithium heated socks will get their first test this weekend.

It seems the challenge in using clothing that heats up is not turning it on too early so that your skin starts sweating, or waiting too late so that it doesn't make much of a difference.

I have a first generation pair of those Heated Insoles that 3M began offering years ago and the instructions specifically state they're not designed to feel warm against your feet. 3M claims that allow your natural body heat to keep your feet warm, which to me says they simply keep the inside soles of your boots somewhere around normal body temperature. The remote makes it very easy to turn them on after you reach your stand so that your feet aren't likely to sweat while walking. The instructions also suggest wearing a mid-weight sock so they can work more naturally with your body heat with less likelihood of ending up with sweaty feet. Once that happens, you're hosed in terms of keeping the skin warm.