I would say yes. However, the golden rule in Bitcoin is to minimize any trust. So you may want to consider a 2/3 or 3/5 multisig where you mix hardware devices from different vendors. In this way you can make the signer a commodity and reduce trust on any single vendor. This also has the advantage in that you can store keys in different location such that a their would need to compromise several sites on order to obtain a quorum for signing. But if you only wanted single sig for now then I would say Coldcard are the best of the bunch for several reasons. 1: NVK, as frustrating as he can sometimes be, is very transparent and knowledgeable and focussed and you can listen to Bitcoin Review and get a really good insight into how he thinks 2: Bitcoin only 3: solid track record 4: lots of cool features that are actually good for increasing the security and robustness of your setup 5: lots of choice i.e. Mk4 or the blackberry-like device or just a simple tapsigner 6: respect privacy i.e. they don't run a node so you are encouraged to do that yourself. 7: source viewable (well... better than closed source and we can have a reasonable degree of confidence at the very least Coinkite's competitors are reviewing the code very carefully for any vulnerabilities or backdoors.)

this reddit threads are only complains about the shipping... nothing about the product itself. You can definitely trust Coldcard

Yeah it’s solid

Coinkite the company behind coldcard is fantastic. Never had a problem anywhere in the chain of custody with them or with the user experience with any of mine, and I several of them.